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Finding the Fourth Proportional to 581,394.11, 872,260.65 and 356,898.56

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Solution

The fourth proportional to 581,394.11, 872,260.65 and 356,898.56 is: 535,451.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,394.11 : 872,260.65 = 356,898.56 : x
  2. Step 2: Convert to fraction form
    581,394.11/872,260.65 = 356,898.56/x
  3. Step 3: Cross multiply
    581,394.11x = 872,260.65 × 356,898.56
  4. Step 4: Simplify right side
    581,394.11x = 311,308,565,568.36
  5. Step 5: Solve for x
    x = 311,308,565,568.36/581,394.11
  6. Step 6: Final answer
    x = 535,451.88

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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.