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Finding the Fourth Proportional to 720,797.32, 1,080,146.22 and 346,382.92

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Solution

The fourth proportional to 720,797.32, 1,080,146.22 and 346,382.92 is: 519,069.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,797.32 : 1,080,146.22 = 346,382.92 : x
  2. Step 2: Convert to fraction form
    720,797.32/1,080,146.22 = 346,382.92/x
  3. Step 3: Cross multiply
    720,797.32x = 1,080,146.22 × 346,382.92
  4. Step 4: Simplify right side
    720,797.32x = 374,144,201,710.56
  5. Step 5: Solve for x
    x = 374,144,201,710.56/720,797.32
  6. Step 6: Final answer
    x = 519,069.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.