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Finding the Fourth Proportional to 627,916.40, 941,874.60 and 503,500.40

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Solution

The fourth proportional to 627,916.40, 941,874.60 and 503,500.40 is: 755,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,916.40 : 941,874.60 = 503,500.40 : x
  2. Step 2: Convert to fraction form
    627,916.40/941,874.60 = 503,500.40/x
  3. Step 3: Cross multiply
    627,916.40x = 941,874.60 × 503,500.40
  4. Step 4: Simplify right side
    627,916.40x = 474,234,237,849.84
  5. Step 5: Solve for x
    x = 474,234,237,849.84/627,916.40
  6. Step 6: Final answer
    x = 755,250.60

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Half scale
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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.