Home / 1,216,199.64-1,678,344.12-672,349.44

Finding the Fourth Proportional to 1,216,199.64, 1,678,344.12 and 672,349.44

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Solution

The fourth proportional to 1,216,199.64, 1,678,344.12 and 672,349.44 is: 927,835.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,199.64 : 1,678,344.12 = 672,349.44 : x
  2. Step 2: Convert to fraction form
    1,216,199.64/1,678,344.12 = 672,349.44/x
  3. Step 3: Cross multiply
    1,216,199.64x = 1,678,344.12 × 672,349.44
  4. Step 4: Simplify right side
    1,216,199.64x = 1,128,433,729,209.29
  5. Step 5: Solve for x
    x = 1,128,433,729,209.29/1,216,199.64
  6. Step 6: Final answer
    x = 927,835.93

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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.