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Finding the Fourth Proportional to 478,291.32, 717,177.26 and 237,877.14

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Solution

The fourth proportional to 478,291.32, 717,177.26 and 237,877.14 is: 356,686.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,291.32 : 717,177.26 = 237,877.14 : x
  2. Step 2: Convert to fraction form
    478,291.32/717,177.26 = 237,877.14/x
  3. Step 3: Cross multiply
    478,291.32x = 717,177.26 × 237,877.14
  4. Step 4: Simplify right side
    478,291.32x = 170,600,074,292.45
  5. Step 5: Solve for x
    x = 170,600,074,292.45/478,291.32
  6. Step 6: Final answer
    x = 356,686.54

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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.