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Finding the Fourth Proportional to 478,044.72, 717,086.88 and 141,085.44

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Solution

The fourth proportional to 478,044.72, 717,086.88 and 141,085.44 is: 211,634.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,044.72 : 717,086.88 = 141,085.44 : x
  2. Step 2: Convert to fraction form
    478,044.72/717,086.88 = 141,085.44/x
  3. Step 3: Cross multiply
    478,044.72x = 717,086.88 × 141,085.44
  4. Step 4: Simplify right side
    478,044.72x = 101,170,517,983.03
  5. Step 5: Solve for x
    x = 101,170,517,983.03/478,044.72
  6. Step 6: Final answer
    x = 211,634.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.