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Finding the Fourth Proportional to 632,572.80, 872,972.27 and 346,092.90

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Solution

The fourth proportional to 632,572.80, 872,972.27 and 346,092.90 is: 477,620.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,572.80 : 872,972.27 = 346,092.90 : x
  2. Step 2: Convert to fraction form
    632,572.80/872,972.27 = 346,092.90/x
  3. Step 3: Cross multiply
    632,572.80x = 872,972.27 × 346,092.90
  4. Step 4: Simplify right side
    632,572.80x = 302,129,502,813.42
  5. Step 5: Solve for x
    x = 302,129,502,813.42/632,572.80
  6. Step 6: Final answer
    x = 477,620.13

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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.