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Finding the Fourth Proportional to 480,476.91, 720,789.18 and 160,569.69

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Solution

The fourth proportional to 480,476.91, 720,789.18 and 160,569.69 is: 240,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,476.91 : 720,789.18 = 160,569.69 : x
  2. Step 2: Convert to fraction form
    480,476.91/720,789.18 = 160,569.69/x
  3. Step 3: Cross multiply
    480,476.91x = 720,789.18 × 160,569.69
  4. Step 4: Simplify right side
    480,476.91x = 115,736,896,840.50
  5. Step 5: Solve for x
    x = 115,736,896,840.50/480,476.91
  6. Step 6: Final answer
    x = 240,879.20

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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.