Home / 657,045.60-984,839.40-257,553.60

Finding the Fourth Proportional to 657,045.60, 984,839.40 and 257,553.60

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Solution

The fourth proportional to 657,045.60, 984,839.40 and 257,553.60 is: 386,044.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,045.60 : 984,839.40 = 257,553.60 : x
  2. Step 2: Convert to fraction form
    657,045.60/984,839.40 = 257,553.60/x
  3. Step 3: Cross multiply
    657,045.60x = 984,839.40 × 257,553.60
  4. Step 4: Simplify right side
    657,045.60x = 253,648,932,891.84
  5. Step 5: Solve for x
    x = 253,648,932,891.84/657,045.60
  6. Step 6: Final answer
    x = 386,044.64

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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.