Home / 1,216,644.30-1,678,980.01-672,816.68

Finding the Fourth Proportional to 1,216,644.30, 1,678,980.01 and 672,816.68

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Solution

The fourth proportional to 1,216,644.30, 1,678,980.01 and 672,816.68 is: 928,493.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,644.30 : 1,678,980.01 = 672,816.68 : x
  2. Step 2: Convert to fraction form
    1,216,644.30/1,678,980.01 = 672,816.68/x
  3. Step 3: Cross multiply
    1,216,644.30x = 1,678,980.01 × 672,816.68
  4. Step 4: Simplify right side
    1,216,644.30x = 1,129,645,746,037.63
  5. Step 5: Solve for x
    x = 1,129,645,746,037.63/1,216,644.30
  6. Step 6: Final answer
    x = 928,493.03

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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.