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Finding the Fourth Proportional to 542,593.60, 813,890.40 and 247,681.60

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Solution

The fourth proportional to 542,593.60, 813,890.40 and 247,681.60 is: 371,522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,593.60 : 813,890.40 = 247,681.60 : x
  2. Step 2: Convert to fraction form
    542,593.60/813,890.40 = 247,681.60/x
  3. Step 3: Cross multiply
    542,593.60x = 813,890.40 × 247,681.60
  4. Step 4: Simplify right side
    542,593.60x = 201,585,676,496.64
  5. Step 5: Solve for x
    x = 201,585,676,496.64/542,593.60
  6. Step 6: Final answer
    x = 371,522.40

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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.