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Finding the Fourth Proportional to 551,726.66, 761,731.35 and 361,062.38

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Solution

The fourth proportional to 551,726.66, 761,731.35 and 361,062.38 is: 498,494.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,726.66 : 761,731.35 = 361,062.38 : x
  2. Step 2: Convert to fraction form
    551,726.66/761,731.35 = 361,062.38/x
  3. Step 3: Cross multiply
    551,726.66x = 761,731.35 × 361,062.38
  4. Step 4: Simplify right side
    551,726.66x = 275,032,534,151.61
  5. Step 5: Solve for x
    x = 275,032,534,151.61/551,726.66
  6. Step 6: Final answer
    x = 498,494.19

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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.