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Finding the Fourth Proportional to 485,213.94, 669,633.65 and 267,461.27

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Solution

The fourth proportional to 485,213.94, 669,633.65 and 267,461.27 is: 369,117.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,213.94 : 669,633.65 = 267,461.27 : x
  2. Step 2: Convert to fraction form
    485,213.94/669,633.65 = 267,461.27/x
  3. Step 3: Cross multiply
    485,213.94x = 669,633.65 × 267,461.27
  4. Step 4: Simplify right side
    485,213.94x = 179,101,066,463.74
  5. Step 5: Solve for x
    x = 179,101,066,463.74/485,213.94
  6. Step 6: Final answer
    x = 369,117.73

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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.