Home / 1,216,506.20-1,678,748.64-672,627.56

Finding the Fourth Proportional to 1,216,506.20, 1,678,748.64 and 672,627.56

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Solution

The fourth proportional to 1,216,506.20, 1,678,748.64 and 672,627.56 is: 928,209.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,506.20 : 1,678,748.64 = 672,627.56 : x
  2. Step 2: Convert to fraction form
    1,216,506.20/1,678,748.64 = 672,627.56/x
  3. Step 3: Cross multiply
    1,216,506.20x = 1,678,748.64 × 672,627.56
  4. Step 4: Simplify right side
    1,216,506.20x = 1,129,172,601,576.52
  5. Step 5: Solve for x
    x = 1,129,172,601,576.52/1,216,506.20
  6. Step 6: Final answer
    x = 928,209.49

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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.