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Finding the Fourth Proportional to 1,197,458, 1,652,494.20 and 660,914

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Solution

The fourth proportional to 1,197,458, 1,652,494.20 and 660,914 is: 912,062.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,458 : 1,652,494.20 = 660,914 : x
  2. Step 2: Convert to fraction form
    1,197,458/1,652,494.20 = 660,914/x
  3. Step 3: Cross multiply
    1,197,458x = 1,652,494.20 × 660,914
  4. Step 4: Simplify right side
    1,197,458x = 1,092,156,551,698.80
  5. Step 5: Solve for x
    x = 1,092,156,551,698.80/1,197,458
  6. Step 6: Final answer
    x = 912,062.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.