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Finding the Fourth Proportional to 574,171.80, 861,257.70 and 174,809.40

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Solution

The fourth proportional to 574,171.80, 861,257.70 and 174,809.40 is: 262,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,171.80 : 861,257.70 = 174,809.40 : x
  2. Step 2: Convert to fraction form
    574,171.80/861,257.70 = 174,809.40/x
  3. Step 3: Cross multiply
    574,171.80x = 861,257.70 × 174,809.40
  4. Step 4: Simplify right side
    574,171.80x = 150,555,941,782.38
  5. Step 5: Solve for x
    x = 150,555,941,782.38/574,171.80
  6. Step 6: Final answer
    x = 262,214.10

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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.