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Finding the Fourth Proportional to 1,344,404.54, 1,854,032 and 981,253.20

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Solution

The fourth proportional to 1,344,404.54, 1,854,032 and 981,253.20 is: 1,353,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,404.54 : 1,854,032 = 981,253.20 : x
  2. Step 2: Convert to fraction form
    1,344,404.54/1,854,032 = 981,253.20/x
  3. Step 3: Cross multiply
    1,344,404.54x = 1,854,032 × 981,253.20
  4. Step 4: Simplify right side
    1,344,404.54x = 1,819,274,832,902.40
  5. Step 5: Solve for x
    x = 1,819,274,832,902.40/1,344,404.54
  6. Step 6: Final answer
    x = 1,353,219.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.