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Finding the Fourth Proportional to 484,990.65, 669,260.55 and 267,156.93

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Solution

The fourth proportional to 484,990.65, 669,260.55 and 267,156.93 is: 368,661.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,990.65 : 669,260.55 = 267,156.93 : x
  2. Step 2: Convert to fraction form
    484,990.65/669,260.55 = 267,156.93/x
  3. Step 3: Cross multiply
    484,990.65x = 669,260.55 × 267,156.93
  4. Step 4: Simplify right side
    484,990.65x = 178,797,593,908.11
  5. Step 5: Solve for x
    x = 178,797,593,908.11/484,990.65
  6. Step 6: Final answer
    x = 368,661.94

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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.