Home / 621,119,323.30-931,678,984.95-477,792,091.30

Finding the Fourth Proportional to 621,119,323.30, 931,678,984.95 and 477,792,091.30

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Solution

The fourth proportional to 621,119,323.30, 931,678,984.95 and 477,792,091.30 is: 716,688,136.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,119,323.30 : 931,678,984.95 = 477,792,091.30 : x
  2. Step 2: Convert to fraction form
    621,119,323.30/931,678,984.95 = 477,792,091.30/x
  3. Step 3: Cross multiply
    621,119,323.30x = 931,678,984.95 × 477,792,091.30
  4. Step 4: Simplify right side
    621,119,323.30x = 445,148,850,639,521,728
  5. Step 5: Solve for x
    x = 445,148,850,639,521,728/621,119,323.30
  6. Step 6: Final answer
    x = 716,688,136.95

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Half scale
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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.