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Finding the Fourth Proportional to 865,885.65, 1,194,959.10 and 483,912.42

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Solution

The fourth proportional to 865,885.65, 1,194,959.10 and 483,912.42 is: 667,819.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,885.65 : 1,194,959.10 = 483,912.42 : x
  2. Step 2: Convert to fraction form
    865,885.65/1,194,959.10 = 483,912.42/x
  3. Step 3: Cross multiply
    865,885.65x = 1,194,959.10 × 483,912.42
  4. Step 4: Simplify right side
    865,885.65x = 578,255,549,882.02
  5. Step 5: Solve for x
    x = 578,255,549,882.02/865,885.65
  6. Step 6: Final answer
    x = 667,819.76

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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.