Home / 1,216,525.92-1,678,687.36-672,587.28

Finding the Fourth Proportional to 1,216,525.92, 1,678,687.36 and 672,587.28

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Solution

The fourth proportional to 1,216,525.92, 1,678,687.36 and 672,587.28 is: 928,104.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,525.92 : 1,678,687.36 = 672,587.28 : x
  2. Step 2: Convert to fraction form
    1,216,525.92/1,678,687.36 = 672,587.28/x
  3. Step 3: Cross multiply
    1,216,525.92x = 1,678,687.36 × 672,587.28
  4. Step 4: Simplify right side
    1,216,525.92x = 1,129,063,765,432.78
  5. Step 5: Solve for x
    x = 1,129,063,765,432.78/1,216,525.92
  6. Step 6: Final answer
    x = 928,104.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.