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Finding the Fourth Proportional to 552,806.07, 829,206.38 and 215,880.95

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Solution

The fourth proportional to 552,806.07, 829,206.38 and 215,880.95 is: 323,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,806.07 : 829,206.38 = 215,880.95 : x
  2. Step 2: Convert to fraction form
    552,806.07/829,206.38 = 215,880.95/x
  3. Step 3: Cross multiply
    552,806.07x = 829,206.38 × 215,880.95
  4. Step 4: Simplify right side
    552,806.07x = 179,009,857,454.13
  5. Step 5: Solve for x
    x = 179,009,857,454.13/552,806.07
  6. Step 6: Final answer
    x = 323,820.35

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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.