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Finding the Fourth Proportional to 865,398.52, 1,194,244.32 and 483,421.96

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Solution

The fourth proportional to 865,398.52, 1,194,244.32 and 483,421.96 is: 667,119.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,398.52 : 1,194,244.32 = 483,421.96 : x
  2. Step 2: Convert to fraction form
    865,398.52/1,194,244.32 = 483,421.96/x
  3. Step 3: Cross multiply
    865,398.52x = 1,194,244.32 × 483,421.96
  4. Step 4: Simplify right side
    865,398.52x = 577,323,929,893.27
  5. Step 5: Solve for x
    x = 577,323,929,893.27/865,398.52
  6. Step 6: Final answer
    x = 667,119.16

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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.