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Finding the Fourth Proportional to 3,197,071.87, 4,795,610.89 and 891,472.91

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Solution

The fourth proportional to 3,197,071.87, 4,795,610.89 and 891,472.91 is: 1,337,210.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197,071.87 : 4,795,610.89 = 891,472.91 : x
  2. Step 2: Convert to fraction form
    3,197,071.87/4,795,610.89 = 891,472.91/x
  3. Step 3: Cross multiply
    3,197,071.87x = 4,795,610.89 × 891,472.91
  4. Step 4: Simplify right side
    3,197,071.87x = 4,275,157,207,502.79
  5. Step 5: Solve for x
    x = 4,275,157,207,502.79/3,197,071.87
  6. Step 6: Final answer
    x = 1,337,210.23

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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.