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Finding the Fourth Proportional to 561,321.20, 841,981.80 and 337,372.40

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Solution

The fourth proportional to 561,321.20, 841,981.80 and 337,372.40 is: 506,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,321.20 : 841,981.80 = 337,372.40 : x
  2. Step 2: Convert to fraction form
    561,321.20/841,981.80 = 337,372.40/x
  3. Step 3: Cross multiply
    561,321.20x = 841,981.80 × 337,372.40
  4. Step 4: Simplify right side
    561,321.20x = 284,061,420,622.32
  5. Step 5: Solve for x
    x = 284,061,420,622.32/561,321.20
  6. Step 6: Final answer
    x = 506,058.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.