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Finding the Fourth Proportional to 693,959.32, 957,651.42 and 392,146.84

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Solution

The fourth proportional to 693,959.32, 957,651.42 and 392,146.84 is: 541,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,959.32 : 957,651.42 = 392,146.84 : x
  2. Step 2: Convert to fraction form
    693,959.32/957,651.42 = 392,146.84/x
  3. Step 3: Cross multiply
    693,959.32x = 957,651.42 × 392,146.84
  4. Step 4: Simplify right side
    693,959.32x = 375,539,978,174.51
  5. Step 5: Solve for x
    x = 375,539,978,174.51/693,959.32
  6. Step 6: Final answer
    x = 541,155.61

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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.