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Finding the Fourth Proportional to 616,249.89, 850,419 and 344,364.66

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Solution

The fourth proportional to 616,249.89, 850,419 and 344,364.66 is: 475,219.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,249.89 : 850,419 = 344,364.66 : x
  2. Step 2: Convert to fraction form
    616,249.89/850,419 = 344,364.66/x
  3. Step 3: Cross multiply
    616,249.89x = 850,419 × 344,364.66
  4. Step 4: Simplify right side
    616,249.89x = 292,854,249,792.54
  5. Step 5: Solve for x
    x = 292,854,249,792.54/616,249.89
  6. Step 6: Final answer
    x = 475,219.96

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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.