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Finding the Fourth Proportional to 865,752.66, 1,194,715.74 and 483,782.58

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Solution

The fourth proportional to 865,752.66, 1,194,715.74 and 483,782.58 is: 667,607.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,752.66 : 1,194,715.74 = 483,782.58 : x
  2. Step 2: Convert to fraction form
    865,752.66/1,194,715.74 = 483,782.58/x
  3. Step 3: Cross multiply
    865,752.66x = 1,194,715.74 × 483,782.58
  4. Step 4: Simplify right side
    865,752.66x = 577,982,663,063.81
  5. Step 5: Solve for x
    x = 577,982,663,063.81/865,752.66
  6. Step 6: Final answer
    x = 667,607.15

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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.