Home / 657,498.87-986,276.43-258,226.20

Finding the Fourth Proportional to 657,498.87, 986,276.43 and 258,226.20

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Solution

The fourth proportional to 657,498.87, 986,276.43 and 258,226.20 is: 387,350.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,498.87 : 986,276.43 = 258,226.20 : x
  2. Step 2: Convert to fraction form
    657,498.87/986,276.43 = 258,226.20/x
  3. Step 3: Cross multiply
    657,498.87x = 986,276.43 × 258,226.20
  4. Step 4: Simplify right side
    657,498.87x = 254,682,414,668.47
  5. Step 5: Solve for x
    x = 254,682,414,668.47/657,498.87
  6. Step 6: Final answer
    x = 387,350.35

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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.