Home / 933,772.67-1,288,640.88-520,346.75

Finding the Fourth Proportional to 933,772.67, 1,288,640.88 and 520,346.75

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Solution

The fourth proportional to 933,772.67, 1,288,640.88 and 520,346.75 is: 718,097.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,772.67 : 1,288,640.88 = 520,346.75 : x
  2. Step 2: Convert to fraction form
    933,772.67/1,288,640.88 = 520,346.75/x
  3. Step 3: Cross multiply
    933,772.67x = 1,288,640.88 × 520,346.75
  4. Step 4: Simplify right side
    933,772.67x = 670,540,087,381.94
  5. Step 5: Solve for x
    x = 670,540,087,381.94/933,772.67
  6. Step 6: Final answer
    x = 718,097.79

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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.