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Finding the Fourth Proportional to 484,846.71, 669,088.42 and 281,015.85

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Solution

The fourth proportional to 484,846.71, 669,088.42 and 281,015.85 is: 387,801.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,846.71 : 669,088.42 = 281,015.85 : x
  2. Step 2: Convert to fraction form
    484,846.71/669,088.42 = 281,015.85/x
  3. Step 3: Cross multiply
    484,846.71x = 669,088.42 × 281,015.85
  4. Step 4: Simplify right side
    484,846.71x = 188,024,451,071.46
  5. Step 5: Solve for x
    x = 188,024,451,071.46/484,846.71
  6. Step 6: Final answer
    x = 387,801.85

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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.