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Finding the Fourth Proportional to 261,395.10, 392,092.65 and 251,553.60

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Solution

The fourth proportional to 261,395.10, 392,092.65 and 251,553.60 is: 377,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,395.10 : 392,092.65 = 251,553.60 : x
  2. Step 2: Convert to fraction form
    261,395.10/392,092.65 = 251,553.60/x
  3. Step 3: Cross multiply
    261,395.10x = 392,092.65 × 251,553.60
  4. Step 4: Simplify right side
    261,395.10x = 98,632,317,641.04
  5. Step 5: Solve for x
    x = 98,632,317,641.04/261,395.10
  6. Step 6: Final answer
    x = 377,330.40

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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.