Home / 1,216,512.30-1,678,714.86-672,605.40

Finding the Fourth Proportional to 1,216,512.30, 1,678,714.86 and 672,605.40

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Solution

The fourth proportional to 1,216,512.30, 1,678,714.86 and 672,605.40 is: 928,155.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,512.30 : 1,678,714.86 = 672,605.40 : x
  2. Step 2: Convert to fraction form
    1,216,512.30/1,678,714.86 = 672,605.40/x
  3. Step 3: Cross multiply
    1,216,512.30x = 1,678,714.86 × 672,605.40
  4. Step 4: Simplify right side
    1,216,512.30x = 1,129,112,679,896.24
  5. Step 5: Solve for x
    x = 1,129,112,679,896.24/1,216,512.30
  6. Step 6: Final answer
    x = 928,155.58

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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.