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Finding the Fourth Proportional to 713,061.13, 984,025.21 and 386,373.90

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Solution

The fourth proportional to 713,061.13, 984,025.21 and 386,373.90 is: 533,196.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,061.13 : 984,025.21 = 386,373.90 : x
  2. Step 2: Convert to fraction form
    713,061.13/984,025.21 = 386,373.90/x
  3. Step 3: Cross multiply
    713,061.13x = 984,025.21 × 386,373.90
  4. Step 4: Simplify right side
    713,061.13x = 380,201,658,086.02
  5. Step 5: Solve for x
    x = 380,201,658,086.02/713,061.13
  6. Step 6: Final answer
    x = 533,196.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.