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Finding the Fourth Proportional to 865,744.40, 1,194,704.34 and 483,774.32

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Solution

The fourth proportional to 865,744.40, 1,194,704.34 and 483,774.32 is: 667,595.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,744.40 : 1,194,704.34 = 483,774.32 : x
  2. Step 2: Convert to fraction form
    865,744.40/1,194,704.34 = 483,774.32/x
  3. Step 3: Cross multiply
    865,744.40x = 1,194,704.34 × 483,774.32
  4. Step 4: Simplify right side
    865,744.40x = 577,967,273,711.03
  5. Step 5: Solve for x
    x = 577,967,273,711.03/865,744.40
  6. Step 6: Final answer
    x = 667,595.74

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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.