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Finding the Fourth Proportional to 865,763.82, 1,194,780.51 and 483,806.70

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Solution

The fourth proportional to 865,763.82, 1,194,780.51 and 483,806.70 is: 667,668.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,763.82 : 1,194,780.51 = 483,806.70 : x
  2. Step 2: Convert to fraction form
    865,763.82/1,194,780.51 = 483,806.70/x
  3. Step 3: Cross multiply
    865,763.82x = 1,194,780.51 × 483,806.70
  4. Step 4: Simplify right side
    865,763.82x = 578,042,815,767.42
  5. Step 5: Solve for x
    x = 578,042,815,767.42/865,763.82
  6. Step 6: Final answer
    x = 667,668.02

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Double scale
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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.