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Finding the Fourth Proportional to 568,472.76, 784,471.68 and 313,818.48

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Solution

The fourth proportional to 568,472.76, 784,471.68 and 313,818.48 is: 433,058.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,472.76 : 784,471.68 = 313,818.48 : x
  2. Step 2: Convert to fraction form
    568,472.76/784,471.68 = 313,818.48/x
  3. Step 3: Cross multiply
    568,472.76x = 784,471.68 × 313,818.48
  4. Step 4: Simplify right side
    568,472.76x = 246,181,710,220.65
  5. Step 5: Solve for x
    x = 246,181,710,220.65/568,472.76
  6. Step 6: Final answer
    x = 433,058.06

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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.