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Finding the Fourth Proportional to 417,637.32, 625,649.52 and 249,291.78

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Solution

The fourth proportional to 417,637.32, 625,649.52 and 249,291.78 is: 373,456.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,637.32 : 625,649.52 = 249,291.78 : x
  2. Step 2: Convert to fraction form
    417,637.32/625,649.52 = 249,291.78/x
  3. Step 3: Cross multiply
    417,637.32x = 625,649.52 × 249,291.78
  4. Step 4: Simplify right side
    417,637.32x = 155,969,282,496.95
  5. Step 5: Solve for x
    x = 155,969,282,496.95/417,637.32
  6. Step 6: Final answer
    x = 373,456.29

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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.