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Finding the Fourth Proportional to 625,177.50, 862,762.59 and 353,256.90

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Solution

The fourth proportional to 625,177.50, 862,762.59 and 353,256.90 is: 487,504.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,177.50 : 862,762.59 = 353,256.90 : x
  2. Step 2: Convert to fraction form
    625,177.50/862,762.59 = 353,256.90/x
  3. Step 3: Cross multiply
    625,177.50x = 862,762.59 × 353,256.90
  4. Step 4: Simplify right side
    625,177.50x = 304,776,837,979.37
  5. Step 5: Solve for x
    x = 304,776,837,979.37/625,177.50
  6. Step 6: Final answer
    x = 487,504.49

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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.