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Finding the Fourth Proportional to 656,640.80, 984,961.20 and 573,696.80

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Solution

The fourth proportional to 656,640.80, 984,961.20 and 573,696.80 is: 860,545.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,640.80 : 984,961.20 = 573,696.80 : x
  2. Step 2: Convert to fraction form
    656,640.80/984,961.20 = 573,696.80/x
  3. Step 3: Cross multiply
    656,640.80x = 984,961.20 × 573,696.80
  4. Step 4: Simplify right side
    656,640.80x = 565,069,088,564.16
  5. Step 5: Solve for x
    x = 565,069,088,564.16/656,640.80
  6. Step 6: Final answer
    x = 860,545.20

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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.