Home / 1,216,511.30-1,678,713.48-672,604.40

Finding the Fourth Proportional to 1,216,511.30, 1,678,713.48 and 672,604.40

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Solution

The fourth proportional to 1,216,511.30, 1,678,713.48 and 672,604.40 is: 928,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,511.30 : 1,678,713.48 = 672,604.40 : x
  2. Step 2: Convert to fraction form
    1,216,511.30/1,678,713.48 = 672,604.40/x
  3. Step 3: Cross multiply
    1,216,511.30x = 1,678,713.48 × 672,604.40
  4. Step 4: Simplify right side
    1,216,511.30x = 1,129,110,077,184.10
  5. Step 5: Solve for x
    x = 1,129,110,077,184.10/1,216,511.30
  6. Step 6: Final answer
    x = 928,154.20

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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.