Home / 289,276.11-433,934.82-89,570.88

Finding the Fourth Proportional to 289,276.11, 433,934.82 and 89,570.88

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Solution

The fourth proportional to 289,276.11, 433,934.82 and 89,570.88 is: 134,362.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,276.11 : 433,934.82 = 89,570.88 : x
  2. Step 2: Convert to fraction form
    289,276.11/433,934.82 = 89,570.88/x
  3. Step 3: Cross multiply
    289,276.11x = 433,934.82 × 89,570.88
  4. Step 4: Simplify right side
    289,276.11x = 38,867,923,690.04
  5. Step 5: Solve for x
    x = 38,867,923,690.04/289,276.11
  6. Step 6: Final answer
    x = 134,362.72

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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.