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Finding the Fourth Proportional to 865,778.96, 1,194,773.04 and 483,805.78

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Solution

The fourth proportional to 865,778.96, 1,194,773.04 and 483,805.78 is: 667,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,778.96 : 1,194,773.04 = 483,805.78 : x
  2. Step 2: Convert to fraction form
    865,778.96/1,194,773.04 = 483,805.78/x
  3. Step 3: Cross multiply
    865,778.96x = 1,194,773.04 × 483,805.78
  4. Step 4: Simplify right side
    865,778.96x = 578,038,102,540.17
  5. Step 5: Solve for x
    x = 578,038,102,540.17/865,778.96
  6. Step 6: Final answer
    x = 667,650.90

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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.