Home / 1,265,245.60-1,897,868.40-517,116.64

Finding the Fourth Proportional to 1,265,245.60, 1,897,868.40 and 517,116.64

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Solution

The fourth proportional to 1,265,245.60, 1,897,868.40 and 517,116.64 is: 775,674.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,245.60 : 1,897,868.40 = 517,116.64 : x
  2. Step 2: Convert to fraction form
    1,265,245.60/1,897,868.40 = 517,116.64/x
  3. Step 3: Cross multiply
    1,265,245.60x = 1,897,868.40 × 517,116.64
  4. Step 4: Simplify right side
    1,265,245.60x = 981,419,330,170.18
  5. Step 5: Solve for x
    x = 981,419,330,170.18/1,265,245.60
  6. Step 6: Final answer
    x = 775,674.96

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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.