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Finding the Fourth Proportional to 610,424.88, 842,391.06 and 338,476.88

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Solution

The fourth proportional to 610,424.88, 842,391.06 and 338,476.88 is: 467,100.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,424.88 : 842,391.06 = 338,476.88 : x
  2. Step 2: Convert to fraction form
    610,424.88/842,391.06 = 338,476.88/x
  3. Step 3: Cross multiply
    610,424.88x = 842,391.06 × 338,476.88
  4. Step 4: Simplify right side
    610,424.88x = 285,129,897,728.69
  5. Step 5: Solve for x
    x = 285,129,897,728.69/610,424.88
  6. Step 6: Final answer
    x = 467,100.71

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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.