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Finding the Fourth Proportional to 532,362.10, 798,543.15 and 343,405.30

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Solution

The fourth proportional to 532,362.10, 798,543.15 and 343,405.30 is: 515,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,362.10 : 798,543.15 = 343,405.30 : x
  2. Step 2: Convert to fraction form
    532,362.10/798,543.15 = 343,405.30/x
  3. Step 3: Cross multiply
    532,362.10x = 798,543.15 × 343,405.30
  4. Step 4: Simplify right side
    532,362.10x = 274,223,949,988.70
  5. Step 5: Solve for x
    x = 274,223,949,988.70/532,362.10
  6. Step 6: Final answer
    x = 515,107.95

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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.