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Finding the Fourth Proportional to 532,331.55, 734,628.66 and 290,624.31

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Solution

The fourth proportional to 532,331.55, 734,628.66 and 290,624.31 is: 401,067.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,331.55 : 734,628.66 = 290,624.31 : x
  2. Step 2: Convert to fraction form
    532,331.55/734,628.66 = 290,624.31/x
  3. Step 3: Cross multiply
    532,331.55x = 734,628.66 × 290,624.31
  4. Step 4: Simplify right side
    532,331.55x = 213,500,947,418.73
  5. Step 5: Solve for x
    x = 213,500,947,418.73/532,331.55
  6. Step 6: Final answer
    x = 401,067.62

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1.5x scale

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.