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Finding the Fourth Proportional to 532,329.55, 734,625.90 and 290,622.31

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Solution

The fourth proportional to 532,329.55, 734,625.90 and 290,622.31 is: 401,064.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,329.55 : 734,625.90 = 290,622.31 : x
  2. Step 2: Convert to fraction form
    532,329.55/734,625.90 = 290,622.31/x
  3. Step 3: Cross multiply
    532,329.55x = 734,625.90 × 290,622.31
  4. Step 4: Simplify right side
    532,329.55x = 213,498,676,043.83
  5. Step 5: Solve for x
    x = 213,498,676,043.83/532,329.55
  6. Step 6: Final answer
    x = 401,064.86

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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.