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Finding the Fourth Proportional to 1,971,708.40, 2,957,562.60 and 773,669.80

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Solution

The fourth proportional to 1,971,708.40, 2,957,562.60 and 773,669.80 is: 1,160,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,708.40 : 2,957,562.60 = 773,669.80 : x
  2. Step 2: Convert to fraction form
    1,971,708.40/2,957,562.60 = 773,669.80/x
  3. Step 3: Cross multiply
    1,971,708.40x = 2,957,562.60 × 773,669.80
  4. Step 4: Simplify right side
    1,971,708.40x = 2,288,176,865,229.48
  5. Step 5: Solve for x
    x = 2,288,176,865,229.48/1,971,708.40
  6. Step 6: Final answer
    x = 1,160,504.70

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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.