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Finding the Fourth Proportional to 625,187.16, 862,762.43 and 338,707.25

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Solution

The fourth proportional to 625,187.16, 862,762.43 and 338,707.25 is: 467,418.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,187.16 : 862,762.43 = 338,707.25 : x
  2. Step 2: Convert to fraction form
    625,187.16/862,762.43 = 338,707.25/x
  3. Step 3: Cross multiply
    625,187.16x = 862,762.43 × 338,707.25
  4. Step 4: Simplify right side
    625,187.16x = 292,223,884,061.27
  5. Step 5: Solve for x
    x = 292,223,884,061.27/625,187.16
  6. Step 6: Final answer
    x = 467,418.24

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1.5x scale

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.