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Finding the Fourth Proportional to 503,437.20, 755,155.80 and 461,446.80

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Solution

The fourth proportional to 503,437.20, 755,155.80 and 461,446.80 is: 692,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,437.20 : 755,155.80 = 461,446.80 : x
  2. Step 2: Convert to fraction form
    503,437.20/755,155.80 = 461,446.80/x
  3. Step 3: Cross multiply
    503,437.20x = 755,155.80 × 461,446.80
  4. Step 4: Simplify right side
    503,437.20x = 348,464,227,411.44
  5. Step 5: Solve for x
    x = 348,464,227,411.44/503,437.20
  6. Step 6: Final answer
    x = 692,170.20

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Double scale
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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.