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Finding the Fourth Proportional to 470,713.77, 649,569.11 and 269,470.89

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Solution

The fourth proportional to 470,713.77, 649,569.11 and 269,470.89 is: 371,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,713.77 : 649,569.11 = 269,470.89 : x
  2. Step 2: Convert to fraction form
    470,713.77/649,569.11 = 269,470.89/x
  3. Step 3: Cross multiply
    470,713.77x = 649,569.11 × 269,470.89
  4. Step 4: Simplify right side
    470,713.77x = 175,039,964,840.85
  5. Step 5: Solve for x
    x = 175,039,964,840.85/470,713.77
  6. Step 6: Final answer
    x = 371,860.73

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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.