Home / 410,327.20-615,548.40-129,815.20

Finding the Fourth Proportional to 410,327.20, 615,548.40 and 129,815.20

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Solution

The fourth proportional to 410,327.20, 615,548.40 and 129,815.20 is: 194,741.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,327.20 : 615,548.40 = 129,815.20 : x
  2. Step 2: Convert to fraction form
    410,327.20/615,548.40 = 129,815.20/x
  3. Step 3: Cross multiply
    410,327.20x = 615,548.40 × 129,815.20
  4. Step 4: Simplify right side
    410,327.20x = 79,907,538,655.68
  5. Step 5: Solve for x
    x = 79,907,538,655.68/410,327.20
  6. Step 6: Final answer
    x = 194,741.02

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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.