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Finding the Fourth Proportional to 880,472.80, 1,320,709.20 and 565,544.80

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Solution

The fourth proportional to 880,472.80, 1,320,709.20 and 565,544.80 is: 848,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,472.80 : 1,320,709.20 = 565,544.80 : x
  2. Step 2: Convert to fraction form
    880,472.80/1,320,709.20 = 565,544.80/x
  3. Step 3: Cross multiply
    880,472.80x = 1,320,709.20 × 565,544.80
  4. Step 4: Simplify right side
    880,472.80x = 746,920,220,372.16
  5. Step 5: Solve for x
    x = 746,920,220,372.16/880,472.80
  6. Step 6: Final answer
    x = 848,317.20

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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.