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Finding the Fourth Proportional to 576,743.10, 865,114.65 and 576,743.10

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Solution

The fourth proportional to 576,743.10, 865,114.65 and 576,743.10 is: 865,114.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,743.10 : 865,114.65 = 576,743.10 : x
  2. Step 2: Convert to fraction form
    576,743.10/865,114.65 = 576,743.10/x
  3. Step 3: Cross multiply
    576,743.10x = 865,114.65 × 576,743.10
  4. Step 4: Simplify right side
    576,743.10x = 498,948,905,096.42
  5. Step 5: Solve for x
    x = 498,948,905,096.42/576,743.10
  6. Step 6: Final answer
    x = 865,114.65

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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.