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Finding the Fourth Proportional to 571,462.29, 788,620.12 and 313,343.24

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Solution

The fourth proportional to 571,462.29, 788,620.12 and 313,343.24 is: 432,414.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,462.29 : 788,620.12 = 313,343.24 : x
  2. Step 2: Convert to fraction form
    571,462.29/788,620.12 = 313,343.24/x
  3. Step 3: Cross multiply
    571,462.29x = 788,620.12 × 313,343.24
  4. Step 4: Simplify right side
    571,462.29x = 247,108,778,803.53
  5. Step 5: Solve for x
    x = 247,108,778,803.53/571,462.29
  6. Step 6: Final answer
    x = 432,414.85

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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.