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Finding the Fourth Proportional to 724,672.95, 1,087,009.43 and 724,672.95

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Solution

The fourth proportional to 724,672.95, 1,087,009.43 and 724,672.95 is: 1,087,009.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,672.95 : 1,087,009.43 = 724,672.95 : x
  2. Step 2: Convert to fraction form
    724,672.95/1,087,009.43 = 724,672.95/x
  3. Step 3: Cross multiply
    724,672.95x = 1,087,009.43 × 724,672.95
  4. Step 4: Simplify right side
    724,672.95x = 787,726,326,692.55
  5. Step 5: Solve for x
    x = 787,726,326,692.55/724,672.95
  6. Step 6: Final answer
    x = 1,087,009.43

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1.5x scale

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.