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Finding the Fourth Proportional to 493,390.80, 680,882.16 and 267,036.28

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Solution

The fourth proportional to 493,390.80, 680,882.16 and 267,036.28 is: 368,511.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,390.80 : 680,882.16 = 267,036.28 : x
  2. Step 2: Convert to fraction form
    493,390.80/680,882.16 = 267,036.28/x
  3. Step 3: Cross multiply
    493,390.80x = 680,882.16 × 267,036.28
  4. Step 4: Simplify right side
    493,390.80x = 181,820,239,124.77
  5. Step 5: Solve for x
    x = 181,820,239,124.77/493,390.80
  6. Step 6: Final answer
    x = 368,511.61

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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.