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Finding the Fourth Proportional to 625,241.16, 862,831.62 and 338,769

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Solution

The fourth proportional to 625,241.16, 862,831.62 and 338,769 is: 467,500.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,241.16 : 862,831.62 = 338,769 : x
  2. Step 2: Convert to fraction form
    625,241.16/862,831.62 = 338,769/x
  3. Step 3: Cross multiply
    625,241.16x = 862,831.62 × 338,769
  4. Step 4: Simplify right side
    625,241.16x = 292,300,605,075.78
  5. Step 5: Solve for x
    x = 292,300,605,075.78/625,241.16
  6. Step 6: Final answer
    x = 467,500.58

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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.