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Finding the Fourth Proportional to 480,145.18, 662,613.71 and 265,299.09

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Solution

The fourth proportional to 480,145.18, 662,613.71 and 265,299.09 is: 366,120.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,145.18 : 662,613.71 = 265,299.09 : x
  2. Step 2: Convert to fraction form
    480,145.18/662,613.71 = 265,299.09/x
  3. Step 3: Cross multiply
    480,145.18x = 662,613.71 × 265,299.09
  4. Step 4: Simplify right side
    480,145.18x = 175,790,814,947.77
  5. Step 5: Solve for x
    x = 175,790,814,947.77/480,145.18
  6. Step 6: Final answer
    x = 366,120.13

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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.