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Finding the Fourth Proportional to 484,326.65, 726,600.54 and 147,415.05

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Solution

The fourth proportional to 484,326.65, 726,600.54 and 147,415.05 is: 221,156.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,326.65 : 726,600.54 = 147,415.05 : x
  2. Step 2: Convert to fraction form
    484,326.65/726,600.54 = 147,415.05/x
  3. Step 3: Cross multiply
    484,326.65x = 726,600.54 × 147,415.05
  4. Step 4: Simplify right side
    484,326.65x = 107,111,854,934.13
  5. Step 5: Solve for x
    x = 107,111,854,934.13/484,326.65
  6. Step 6: Final answer
    x = 221,156.23

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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.