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Finding the Fourth Proportional to 571,930.22, 789,278.24 and 313,807.10

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Solution

The fourth proportional to 571,930.22, 789,278.24 and 313,807.10 is: 433,061.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,930.22 : 789,278.24 = 313,807.10 : x
  2. Step 2: Convert to fraction form
    571,930.22/789,278.24 = 313,807.10/x
  3. Step 3: Cross multiply
    571,930.22x = 789,278.24 × 313,807.10
  4. Step 4: Simplify right side
    571,930.22x = 247,681,115,587.50
  5. Step 5: Solve for x
    x = 247,681,115,587.50/571,930.22
  6. Step 6: Final answer
    x = 433,061.77

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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.