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Finding the Fourth Proportional to 478,597.65, 718,175.54 and 179,288.47

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Solution

The fourth proportional to 478,597.65, 718,175.54 and 179,288.47 is: 269,037.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,597.65 : 718,175.54 = 179,288.47 : x
  2. Step 2: Convert to fraction form
    478,597.65/718,175.54 = 179,288.47/x
  3. Step 3: Cross multiply
    478,597.65x = 718,175.54 × 179,288.47
  4. Step 4: Simplify right side
    478,597.65x = 128,760,593,758.02
  5. Step 5: Solve for x
    x = 128,760,593,758.02/478,597.65
  6. Step 6: Final answer
    x = 269,037.25

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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.