Home / 442,057.20-663,015.40-146,569.20

Finding the Fourth Proportional to 442,057.20, 663,015.40 and 146,569.20

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Solution

The fourth proportional to 442,057.20, 663,015.40 and 146,569.20 is: 219,830.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,057.20 : 663,015.40 = 146,569.20 : x
  2. Step 2: Convert to fraction form
    442,057.20/663,015.40 = 146,569.20/x
  3. Step 3: Cross multiply
    442,057.20x = 663,015.40 × 146,569.20
  4. Step 4: Simplify right side
    442,057.20x = 97,177,636,765.68
  5. Step 5: Solve for x
    x = 97,177,636,765.68/442,057.20
  6. Step 6: Final answer
    x = 219,830.46

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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.