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Finding the Fourth Proportional to 522,363.60, 783,545.40 and 256,294.80

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Solution

The fourth proportional to 522,363.60, 783,545.40 and 256,294.80 is: 384,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,363.60 : 783,545.40 = 256,294.80 : x
  2. Step 2: Convert to fraction form
    522,363.60/783,545.40 = 256,294.80/x
  3. Step 3: Cross multiply
    522,363.60x = 783,545.40 × 256,294.80
  4. Step 4: Simplify right side
    522,363.60x = 200,818,611,583.92
  5. Step 5: Solve for x
    x = 200,818,611,583.92/522,363.60
  6. Step 6: Final answer
    x = 384,442.20

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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.