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Finding the Fourth Proportional to 532,409.68, 798,611.28 and 133,048.40

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Solution

The fourth proportional to 532,409.68, 798,611.28 and 133,048.40 is: 199,571.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,409.68 : 798,611.28 = 133,048.40 : x
  2. Step 2: Convert to fraction form
    532,409.68/798,611.28 = 133,048.40/x
  3. Step 3: Cross multiply
    532,409.68x = 798,611.28 × 133,048.40
  4. Step 4: Simplify right side
    532,409.68x = 106,253,953,025.95
  5. Step 5: Solve for x
    x = 106,253,953,025.95/532,409.68
  6. Step 6: Final answer
    x = 199,571.79

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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.