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Finding the Fourth Proportional to 541,702.10, 812,553.15 and 407,857.70

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Solution

The fourth proportional to 541,702.10, 812,553.15 and 407,857.70 is: 611,786.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,702.10 : 812,553.15 = 407,857.70 : x
  2. Step 2: Convert to fraction form
    541,702.10/812,553.15 = 407,857.70/x
  3. Step 3: Cross multiply
    541,702.10x = 812,553.15 × 407,857.70
  4. Step 4: Simplify right side
    541,702.10x = 331,406,058,886.76
  5. Step 5: Solve for x
    x = 331,406,058,886.76/541,702.10
  6. Step 6: Final answer
    x = 611,786.55

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Similar ratio
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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.