Home / 410,148.28-615,218.68-129,665.60

Finding the Fourth Proportional to 410,148.28, 615,218.68 and 129,665.60

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Solution

The fourth proportional to 410,148.28, 615,218.68 and 129,665.60 is: 194,497.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,148.28 : 615,218.68 = 129,665.60 : x
  2. Step 2: Convert to fraction form
    410,148.28/615,218.68 = 129,665.60/x
  3. Step 3: Cross multiply
    410,148.28x = 615,218.68 × 129,665.60
  4. Step 4: Simplify right side
    410,148.28x = 79,772,699,273.41
  5. Step 5: Solve for x
    x = 79,772,699,273.41/410,148.28
  6. Step 6: Final answer
    x = 194,497.22

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1.5x scale

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.