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Finding the Fourth Proportional to 535,710.48, 803,565.66 and 417,470.28

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Solution

The fourth proportional to 535,710.48, 803,565.66 and 417,470.28 is: 626,205.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,710.48 : 803,565.66 = 417,470.28 : x
  2. Step 2: Convert to fraction form
    535,710.48/803,565.66 = 417,470.28/x
  3. Step 3: Cross multiply
    535,710.48x = 803,565.66 × 417,470.28
  4. Step 4: Simplify right side
    535,710.48x = 335,464,781,078.59
  5. Step 5: Solve for x
    x = 335,464,781,078.59/535,710.48
  6. Step 6: Final answer
    x = 626,205.37

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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.