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Finding the Fourth Proportional to 519,753.46, 779,681.26 and 216,084.90

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Solution

The fourth proportional to 519,753.46, 779,681.26 and 216,084.90 is: 324,148.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,753.46 : 779,681.26 = 216,084.90 : x
  2. Step 2: Convert to fraction form
    519,753.46/779,681.26 = 216,084.90/x
  3. Step 3: Cross multiply
    519,753.46x = 779,681.26 × 216,084.90
  4. Step 4: Simplify right side
    519,753.46x = 168,477,347,098.97
  5. Step 5: Solve for x
    x = 168,477,347,098.97/519,753.46
  6. Step 6: Final answer
    x = 324,148.58

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1.5x scale

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.