Home / 1,215,114.30-1,676,871.66-671,238.72

Finding the Fourth Proportional to 1,215,114.30, 1,676,871.66 and 671,238.72

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Solution

The fourth proportional to 1,215,114.30, 1,676,871.66 and 671,238.72 is: 926,317.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,114.30 : 1,676,871.66 = 671,238.72 : x
  2. Step 2: Convert to fraction form
    1,215,114.30/1,676,871.66 = 671,238.72/x
  3. Step 3: Cross multiply
    1,215,114.30x = 1,676,871.66 × 671,238.72
  4. Step 4: Simplify right side
    1,215,114.30x = 1,125,581,186,662.68
  5. Step 5: Solve for x
    x = 1,125,581,186,662.68/1,215,114.30
  6. Step 6: Final answer
    x = 926,317.13

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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.