Home / 657,947.20-985,608.60-458,492.80

Finding the Fourth Proportional to 657,947.20, 985,608.60 and 458,492.80

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Solution

The fourth proportional to 657,947.20, 985,608.60 and 458,492.80 is: 686,824.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,947.20 : 985,608.60 = 458,492.80 : x
  2. Step 2: Convert to fraction form
    657,947.20/985,608.60 = 458,492.80/x
  3. Step 3: Cross multiply
    657,947.20x = 985,608.60 × 458,492.80
  4. Step 4: Simplify right side
    657,947.20x = 451,894,446,718.08
  5. Step 5: Solve for x
    x = 451,894,446,718.08/657,947.20
  6. Step 6: Final answer
    x = 686,824.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.