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Finding the Fourth Proportional to 500,445.87, 750,691.26 and 163,507.05

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Solution

The fourth proportional to 500,445.87, 750,691.26 and 163,507.05 is: 245,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,445.87 : 750,691.26 = 163,507.05 : x
  2. Step 2: Convert to fraction form
    500,445.87/750,691.26 = 163,507.05/x
  3. Step 3: Cross multiply
    500,445.87x = 750,691.26 × 163,507.05
  4. Step 4: Simplify right side
    500,445.87x = 122,743,313,383.38
  5. Step 5: Solve for x
    x = 122,743,313,383.38/500,445.87
  6. Step 6: Final answer
    x = 245,267.91

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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.