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Finding the Fourth Proportional to 480,502.70, 663,107.57 and 265,656.61

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Solution

The fourth proportional to 480,502.70, 663,107.57 and 265,656.61 is: 366,613.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,502.70 : 663,107.57 = 265,656.61 : x
  2. Step 2: Convert to fraction form
    480,502.70/663,107.57 = 265,656.61/x
  3. Step 3: Cross multiply
    480,502.70x = 663,107.57 × 265,656.61
  4. Step 4: Simplify right side
    480,502.70x = 176,158,907,121.70
  5. Step 5: Solve for x
    x = 176,158,907,121.70/480,502.70
  6. Step 6: Final answer
    x = 366,613.77

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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.