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Finding the Fourth Proportional to 610,522.89, 842,572.03 and 338,678.43

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Solution

The fourth proportional to 610,522.89, 842,572.03 and 338,678.43 is: 467,404.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,522.89 : 842,572.03 = 338,678.43 : x
  2. Step 2: Convert to fraction form
    610,522.89/842,572.03 = 338,678.43/x
  3. Step 3: Cross multiply
    610,522.89x = 842,572.03 × 338,678.43
  4. Step 4: Simplify right side
    610,522.89x = 285,360,972,282.31
  5. Step 5: Solve for x
    x = 285,360,972,282.31/610,522.89
  6. Step 6: Final answer
    x = 467,404.22

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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.