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Finding the Fourth Proportional to 480,639.81, 663,269.80 and 265,772.53

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Solution

The fourth proportional to 480,639.81, 663,269.80 and 265,772.53 is: 366,758.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,639.81 : 663,269.80 = 265,772.53 : x
  2. Step 2: Convert to fraction form
    480,639.81/663,269.80 = 265,772.53/x
  3. Step 3: Cross multiply
    480,639.81x = 663,269.80 × 265,772.53
  4. Step 4: Simplify right side
    480,639.81x = 176,278,892,818.59
  5. Step 5: Solve for x
    x = 176,278,892,818.59/480,639.81
  6. Step 6: Final answer
    x = 366,758.83

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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.