Home / 621,119,346.30-931,679,019.45-477,792,114.30

Finding the Fourth Proportional to 621,119,346.30, 931,679,019.45 and 477,792,114.30

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Solution

The fourth proportional to 621,119,346.30, 931,679,019.45 and 477,792,114.30 is: 716,688,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,119,346.30 : 931,679,019.45 = 477,792,114.30 : x
  2. Step 2: Convert to fraction form
    621,119,346.30/931,679,019.45 = 477,792,114.30/x
  3. Step 3: Cross multiply
    621,119,346.30x = 931,679,019.45 × 477,792,114.30
  4. Step 4: Simplify right side
    621,119,346.30x = 445,148,888,551,966,336
  5. Step 5: Solve for x
    x = 445,148,888,551,966,336/621,119,346.30
  6. Step 6: Final answer
    x = 716,688,171.45

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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.