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Finding the Fourth Proportional to 616,678.39, 851,055.69 and 344,747.44

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Solution

The fourth proportional to 616,678.39, 851,055.69 and 344,747.44 is: 475,773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,678.39 : 851,055.69 = 344,747.44 : x
  2. Step 2: Convert to fraction form
    616,678.39/851,055.69 = 344,747.44/x
  3. Step 3: Cross multiply
    616,678.39x = 851,055.69 × 344,747.44
  4. Step 4: Simplify right side
    616,678.39x = 293,399,270,424.93
  5. Step 5: Solve for x
    x = 293,399,270,424.93/616,678.39
  6. Step 6: Final answer
    x = 475,773.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.