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Finding the Fourth Proportional to 567,591.81, 783,281.99 and 312,952.05

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Solution

The fourth proportional to 567,591.81, 783,281.99 and 312,952.05 is: 431,876.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,591.81 : 783,281.99 = 312,952.05 : x
  2. Step 2: Convert to fraction form
    567,591.81/783,281.99 = 312,952.05/x
  3. Step 3: Cross multiply
    567,591.81x = 783,281.99 × 312,952.05
  4. Step 4: Simplify right side
    567,591.81x = 245,129,702,933.82
  5. Step 5: Solve for x
    x = 245,129,702,933.82/567,591.81
  6. Step 6: Final answer
    x = 431,876.74

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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.