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Finding the Fourth Proportional to 289,115.59, 433,695.26 and 89,456.16

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Solution

The fourth proportional to 289,115.59, 433,695.26 and 89,456.16 is: 134,191.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,115.59 : 433,695.26 = 89,456.16 : x
  2. Step 2: Convert to fraction form
    289,115.59/433,695.26 = 89,456.16/x
  3. Step 3: Cross multiply
    289,115.59x = 433,695.26 × 89,456.16
  4. Step 4: Simplify right side
    289,115.59x = 38,796,712,569.80
  5. Step 5: Solve for x
    x = 38,796,712,569.80/289,115.59
  6. Step 6: Final answer
    x = 134,191.01

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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.