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Finding the Fourth Proportional to 625,992.16, 938,434.18 and 301,616.32

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Solution

The fourth proportional to 625,992.16, 938,434.18 and 301,616.32 is: 452,157.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,992.16 : 938,434.18 = 301,616.32 : x
  2. Step 2: Convert to fraction form
    625,992.16/938,434.18 = 301,616.32/x
  3. Step 3: Cross multiply
    625,992.16x = 938,434.18 × 301,616.32
  4. Step 4: Simplify right side
    625,992.16x = 283,047,063,933.82
  5. Step 5: Solve for x
    x = 283,047,063,933.82/625,992.16
  6. Step 6: Final answer
    x = 452,157.52

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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.