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Finding the Fourth Proportional to 676,778.81, 933,954.77 and 374,972.81

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Solution

The fourth proportional to 676,778.81, 933,954.77 and 374,972.81 is: 517,462.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,778.81 : 933,954.77 = 374,972.81 : x
  2. Step 2: Convert to fraction form
    676,778.81/933,954.77 = 374,972.81/x
  3. Step 3: Cross multiply
    676,778.81x = 933,954.77 × 374,972.81
  4. Step 4: Simplify right side
    676,778.81x = 350,207,644,979.83
  5. Step 5: Solve for x
    x = 350,207,644,979.83/676,778.81
  6. Step 6: Final answer
    x = 517,462.48

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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.