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Finding the Fourth Proportional to 1,005,625.90, 1,508,438.85 and 1,005,625.90

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Solution

The fourth proportional to 1,005,625.90, 1,508,438.85 and 1,005,625.90 is: 1,508,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,625.90 : 1,508,438.85 = 1,005,625.90 : x
  2. Step 2: Convert to fraction form
    1,005,625.90/1,508,438.85 = 1,005,625.90/x
  3. Step 3: Cross multiply
    1,005,625.90x = 1,508,438.85 × 1,005,625.90
  4. Step 4: Simplify right side
    1,005,625.90x = 1,516,925,176,126.22
  5. Step 5: Solve for x
    x = 1,516,925,176,126.22/1,005,625.90
  6. Step 6: Final answer
    x = 1,508,438.85

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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.