Home / 1,216,513.53-1,678,716.52-672,606.63

Finding the Fourth Proportional to 1,216,513.53, 1,678,716.52 and 672,606.63

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Solution

The fourth proportional to 1,216,513.53, 1,678,716.52 and 672,606.63 is: 928,157.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,513.53 : 1,678,716.52 = 672,606.63 : x
  2. Step 2: Convert to fraction form
    1,216,513.53/1,678,716.52 = 672,606.63/x
  3. Step 3: Cross multiply
    1,216,513.53x = 1,678,716.52 × 672,606.63
  4. Step 4: Simplify right side
    1,216,513.53x = 1,129,115,861,242.53
  5. Step 5: Solve for x
    x = 1,129,115,861,242.53/1,216,513.53
  6. Step 6: Final answer
    x = 928,157.26

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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.