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Finding the Fourth Proportional to 624,257.78, 861,473.54 and 337,776.57

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Solution

The fourth proportional to 624,257.78, 861,473.54 and 337,776.57 is: 466,130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,257.78 : 861,473.54 = 337,776.57 : x
  2. Step 2: Convert to fraction form
    624,257.78/861,473.54 = 337,776.57/x
  3. Step 3: Cross multiply
    624,257.78x = 861,473.54 × 337,776.57
  4. Step 4: Simplify right side
    624,257.78x = 290,985,578,331.40
  5. Step 5: Solve for x
    x = 290,985,578,331.40/624,257.78
  6. Step 6: Final answer
    x = 466,130.48

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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.