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Finding the Fourth Proportional to 209,630.20, 314,445.30 and 188,894.20

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Solution

The fourth proportional to 209,630.20, 314,445.30 and 188,894.20 is: 283,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,630.20 : 314,445.30 = 188,894.20 : x
  2. Step 2: Convert to fraction form
    209,630.20/314,445.30 = 188,894.20/x
  3. Step 3: Cross multiply
    209,630.20x = 314,445.30 × 188,894.20
  4. Step 4: Simplify right side
    209,630.20x = 59,396,893,387.26
  5. Step 5: Solve for x
    x = 59,396,893,387.26/209,630.20
  6. Step 6: Final answer
    x = 283,341.30

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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.