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Finding the Fourth Proportional to 359,630.20, 539,445.30 and 193,742.20

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Solution

The fourth proportional to 359,630.20, 539,445.30 and 193,742.20 is: 290,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,630.20 : 539,445.30 = 193,742.20 : x
  2. Step 2: Convert to fraction form
    359,630.20/539,445.30 = 193,742.20/x
  3. Step 3: Cross multiply
    359,630.20x = 539,445.30 × 193,742.20
  4. Step 4: Simplify right side
    359,630.20x = 104,513,319,201.66
  5. Step 5: Solve for x
    x = 104,513,319,201.66/359,630.20
  6. Step 6: Final answer
    x = 290,613.30

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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.