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Finding the Fourth Proportional to 314,319.92, 433,770.87 and 193,530.89

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Solution

The fourth proportional to 314,319.92, 433,770.87 and 193,530.89 is: 267,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,319.92 : 433,770.87 = 193,530.89 : x
  2. Step 2: Convert to fraction form
    314,319.92/433,770.87 = 193,530.89/x
  3. Step 3: Cross multiply
    314,319.92x = 433,770.87 × 193,530.89
  4. Step 4: Simplify right side
    314,319.92x = 83,948,060,358.32
  5. Step 5: Solve for x
    x = 83,948,060,358.32/314,319.92
  6. Step 6: Final answer
    x = 267,078.40

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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.