Home / 516,743.60-775,065.28-156,917.57

Finding the Fourth Proportional to 516,743.60, 775,065.28 and 156,917.57

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Solution

The fourth proportional to 516,743.60, 775,065.28 and 156,917.57 is: 235,361.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,743.60 : 775,065.28 = 156,917.57 : x
  2. Step 2: Convert to fraction form
    516,743.60/775,065.28 = 156,917.57/x
  3. Step 3: Cross multiply
    516,743.60x = 775,065.28 × 156,917.57
  4. Step 4: Simplify right side
    516,743.60x = 121,621,360,328.97
  5. Step 5: Solve for x
    x = 121,621,360,328.97/516,743.60
  6. Step 6: Final answer
    x = 235,361.14

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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.