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Finding the Fourth Proportional to 480,759.68, 663,445 and 265,891.80

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Solution

The fourth proportional to 480,759.68, 663,445 and 265,891.80 is: 366,928.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,759.68 : 663,445 = 265,891.80 : x
  2. Step 2: Convert to fraction form
    480,759.68/663,445 = 265,891.80/x
  3. Step 3: Cross multiply
    480,759.68x = 663,445 × 265,891.80
  4. Step 4: Simplify right side
    480,759.68x = 176,404,585,251
  5. Step 5: Solve for x
    x = 176,404,585,251/480,759.68
  6. Step 6: Final answer
    x = 366,928.83

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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.