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Finding the Fourth Proportional to 642,159.44, 963,273.72 and 267,805.52

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Solution

The fourth proportional to 642,159.44, 963,273.72 and 267,805.52 is: 401,722.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,159.44 : 963,273.72 = 267,805.52 : x
  2. Step 2: Convert to fraction form
    642,159.44/963,273.72 = 267,805.52/x
  3. Step 3: Cross multiply
    642,159.44x = 963,273.72 × 267,805.52
  4. Step 4: Simplify right side
    642,159.44x = 257,970,019,486.93
  5. Step 5: Solve for x
    x = 257,970,019,486.93/642,159.44
  6. Step 6: Final answer
    x = 401,722.69

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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.