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Finding the Fourth Proportional to 538,160.40, 807,277.20 and 178,330.40

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Solution

The fourth proportional to 538,160.40, 807,277.20 and 178,330.40 is: 267,507.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,160.40 : 807,277.20 = 178,330.40 : x
  2. Step 2: Convert to fraction form
    538,160.40/807,277.20 = 178,330.40/x
  3. Step 3: Cross multiply
    538,160.40x = 807,277.20 × 178,330.40
  4. Step 4: Simplify right side
    538,160.40x = 143,962,065,986.88
  5. Step 5: Solve for x
    x = 143,962,065,986.88/538,160.40
  6. Step 6: Final answer
    x = 267,507.73

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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.