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Finding the Fourth Proportional to 571,719.61, 788,967.60 and 313,591.24

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Solution

The fourth proportional to 571,719.61, 788,967.60 and 313,591.24 is: 432,752.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,719.61 : 788,967.60 = 313,591.24 : x
  2. Step 2: Convert to fraction form
    571,719.61/788,967.60 = 313,591.24/x
  3. Step 3: Cross multiply
    571,719.61x = 788,967.60 × 313,591.24
  4. Step 4: Simplify right side
    571,719.61x = 247,413,328,003.82
  5. Step 5: Solve for x
    x = 247,413,328,003.82/571,719.61
  6. Step 6: Final answer
    x = 432,752.92

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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.