Home / 827,059.16-1,240,760.90-258,417.28

Finding the Fourth Proportional to 827,059.16, 1,240,760.90 and 258,417.28

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Solution

The fourth proportional to 827,059.16, 1,240,760.90 and 258,417.28 is: 387,679.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,059.16 : 1,240,760.90 = 258,417.28 : x
  2. Step 2: Convert to fraction form
    827,059.16/1,240,760.90 = 258,417.28/x
  3. Step 3: Cross multiply
    827,059.16x = 1,240,760.90 × 258,417.28
  4. Step 4: Simplify right side
    827,059.16x = 320,634,056,908.35
  5. Step 5: Solve for x
    x = 320,634,056,908.35/827,059.16
  6. Step 6: Final answer
    x = 387,679.71

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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.