Home / 657,895.20-985,093.20-419,949.60

Finding the Fourth Proportional to 657,895.20, 985,093.20 and 419,949.60

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Solution

The fourth proportional to 657,895.20, 985,093.20 and 419,949.60 is: 628,807.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,895.20 : 985,093.20 = 419,949.60 : x
  2. Step 2: Convert to fraction form
    657,895.20/985,093.20 = 419,949.60/x
  3. Step 3: Cross multiply
    657,895.20x = 985,093.20 × 419,949.60
  4. Step 4: Simplify right side
    657,895.20x = 413,689,495,302.72
  5. Step 5: Solve for x
    x = 413,689,495,302.72/657,895.20
  6. Step 6: Final answer
    x = 628,807.59

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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.