Home / 519,218.10-778,827.15-487,725.30

Finding the Fourth Proportional to 519,218.10, 778,827.15 and 487,725.30

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Solution

The fourth proportional to 519,218.10, 778,827.15 and 487,725.30 is: 731,587.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,218.10 : 778,827.15 = 487,725.30 : x
  2. Step 2: Convert to fraction form
    519,218.10/778,827.15 = 487,725.30/x
  3. Step 3: Cross multiply
    519,218.10x = 778,827.15 × 487,725.30
  4. Step 4: Simplify right side
    519,218.10x = 379,853,705,381.90
  5. Step 5: Solve for x
    x = 379,853,705,381.90/519,218.10
  6. Step 6: Final answer
    x = 731,587.95

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Double scale
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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.