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Finding the Fourth Proportional to 748,879.20, 1,123,318.80 and 748,879.20

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Solution

The fourth proportional to 748,879.20, 1,123,318.80 and 748,879.20 is: 1,123,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,879.20 : 1,123,318.80 = 748,879.20 : x
  2. Step 2: Convert to fraction form
    748,879.20/1,123,318.80 = 748,879.20/x
  3. Step 3: Cross multiply
    748,879.20x = 1,123,318.80 × 748,879.20
  4. Step 4: Simplify right side
    748,879.20x = 841,230,084,288.96
  5. Step 5: Solve for x
    x = 841,230,084,288.96/748,879.20
  6. Step 6: Final answer
    x = 1,123,318.80

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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.