Home / 1,228,360.11-1,695,143.70-712,419.94

Finding the Fourth Proportional to 1,228,360.11, 1,695,143.70 and 712,419.94

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Solution

The fourth proportional to 1,228,360.11, 1,695,143.70 and 712,419.94 is: 983,143.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,360.11 : 1,695,143.70 = 712,419.94 : x
  2. Step 2: Convert to fraction form
    1,228,360.11/1,695,143.70 = 712,419.94/x
  3. Step 3: Cross multiply
    1,228,360.11x = 1,695,143.70 × 712,419.94
  4. Step 4: Simplify right side
    1,228,360.11x = 1,207,654,179,064.29
  5. Step 5: Solve for x
    x = 1,207,654,179,064.29/1,228,360.11
  6. Step 6: Final answer
    x = 983,143.44

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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.