Home / 680,286.07-938,771.23-374,333.84

Finding the Fourth Proportional to 680,286.07, 938,771.23 and 374,333.84

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Solution

The fourth proportional to 680,286.07, 938,771.23 and 374,333.84 is: 516,567.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,286.07 : 938,771.23 = 374,333.84 : x
  2. Step 2: Convert to fraction form
    680,286.07/938,771.23 = 374,333.84/x
  3. Step 3: Cross multiply
    680,286.07x = 938,771.23 × 374,333.84
  4. Step 4: Simplify right side
    680,286.07x = 351,413,832,841.90
  5. Step 5: Solve for x
    x = 351,413,832,841.90/680,286.07
  6. Step 6: Final answer
    x = 516,567.74

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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.