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Finding the Fourth Proportional to 577,287.60, 865,168.17 and 417,896.20

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Solution

The fourth proportional to 577,287.60, 865,168.17 and 417,896.20 is: 626,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,287.60 : 865,168.17 = 417,896.20 : x
  2. Step 2: Convert to fraction form
    577,287.60/865,168.17 = 417,896.20/x
  3. Step 3: Cross multiply
    577,287.60x = 865,168.17 × 417,896.20
  4. Step 4: Simplify right side
    577,287.60x = 361,550,490,603.95
  5. Step 5: Solve for x
    x = 361,550,490,603.95/577,287.60
  6. Step 6: Final answer
    x = 626,291.80

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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.