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Finding the Fourth Proportional to 672,707.48, 928,343.56 and 366,781.34

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Solution

The fourth proportional to 672,707.48, 928,343.56 and 366,781.34 is: 506,162.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,707.48 : 928,343.56 = 366,781.34 : x
  2. Step 2: Convert to fraction form
    672,707.48/928,343.56 = 366,781.34/x
  3. Step 3: Cross multiply
    672,707.48x = 928,343.56 × 366,781.34
  4. Step 4: Simplify right side
    672,707.48x = 340,499,094,917.17
  5. Step 5: Solve for x
    x = 340,499,094,917.17/672,707.48
  6. Step 6: Final answer
    x = 506,162.20

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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.