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Finding the Fourth Proportional to 478,179.88, 715,272.18 and 336,015.16

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Solution

The fourth proportional to 478,179.88, 715,272.18 and 336,015.16 is: 502,619.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,179.88 : 715,272.18 = 336,015.16 : x
  2. Step 2: Convert to fraction form
    478,179.88/715,272.18 = 336,015.16/x
  3. Step 3: Cross multiply
    478,179.88x = 715,272.18 × 336,015.16
  4. Step 4: Simplify right side
    478,179.88x = 240,342,296,006.25
  5. Step 5: Solve for x
    x = 240,342,296,006.25/478,179.88
  6. Step 6: Final answer
    x = 502,619.01

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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.