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Finding the Fourth Proportional to 547,240.80, 755,134.80 and 317,753.22

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Solution

The fourth proportional to 547,240.80, 755,134.80 and 317,753.22 is: 438,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,240.80 : 755,134.80 = 317,753.22 : x
  2. Step 2: Convert to fraction form
    547,240.80/755,134.80 = 317,753.22/x
  3. Step 3: Cross multiply
    547,240.80x = 755,134.80 × 317,753.22
  4. Step 4: Simplify right side
    547,240.80x = 239,946,514,234.06
  5. Step 5: Solve for x
    x = 239,946,514,234.06/547,240.80
  6. Step 6: Final answer
    x = 438,466.05

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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.