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Finding the Fourth Proportional to 442,086.20, 663,058.90 and 146,598.20

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Solution

The fourth proportional to 442,086.20, 663,058.90 and 146,598.20 is: 219,873.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,086.20 : 663,058.90 = 146,598.20 : x
  2. Step 2: Convert to fraction form
    442,086.20/663,058.90 = 146,598.20/x
  3. Step 3: Cross multiply
    442,086.20x = 663,058.90 × 146,598.20
  4. Step 4: Simplify right side
    442,086.20x = 97,203,241,233.98
  5. Step 5: Solve for x
    x = 97,203,241,233.98/442,086.20
  6. Step 6: Final answer
    x = 219,873.95

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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.