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Finding the Fourth Proportional to 398,340.20, 597,615.90 and 173,604.20

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Solution

The fourth proportional to 398,340.20, 597,615.90 and 173,604.20 is: 260,452.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,340.20 : 597,615.90 = 173,604.20 : x
  2. Step 2: Convert to fraction form
    398,340.20/597,615.90 = 173,604.20/x
  3. Step 3: Cross multiply
    398,340.20x = 597,615.90 × 173,604.20
  4. Step 4: Simplify right side
    398,340.20x = 103,748,630,226.78
  5. Step 5: Solve for x
    x = 103,748,630,226.78/398,340.20
  6. Step 6: Final answer
    x = 260,452.32

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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.