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Finding the Fourth Proportional to 568,456.76, 784,449.75 and 313,802.48

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Solution

The fourth proportional to 568,456.76, 784,449.75 and 313,802.48 is: 433,036.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,456.76 : 784,449.75 = 313,802.48 : x
  2. Step 2: Convert to fraction form
    568,456.76/784,449.75 = 313,802.48/x
  3. Step 3: Cross multiply
    568,456.76x = 784,449.75 × 313,802.48
  4. Step 4: Simplify right side
    568,456.76x = 246,162,273,063.13
  5. Step 5: Solve for x
    x = 246,162,273,063.13/568,456.76
  6. Step 6: Final answer
    x = 433,036.06

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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.