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Finding the Fourth Proportional to 360,445.06, 497,394.08 and 199,290.43

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Solution

The fourth proportional to 360,445.06, 497,394.08 and 199,290.43 is: 275,009.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,445.06 : 497,394.08 = 199,290.43 : x
  2. Step 2: Convert to fraction form
    360,445.06/497,394.08 = 199,290.43/x
  3. Step 3: Cross multiply
    360,445.06x = 497,394.08 × 199,290.43
  4. Step 4: Simplify right side
    360,445.06x = 99,125,876,599.23
  5. Step 5: Solve for x
    x = 99,125,876,599.23/360,445.06
  6. Step 6: Final answer
    x = 275,009.67

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.