Home / 1,146,876.40-1,719,240.23-388,186.96

Finding the Fourth Proportional to 1,146,876.40, 1,719,240.23 and 388,186.96

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Solution

The fourth proportional to 1,146,876.40, 1,719,240.23 and 388,186.96 is: 581,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,876.40 : 1,719,240.23 = 388,186.96 : x
  2. Step 2: Convert to fraction form
    1,146,876.40/1,719,240.23 = 388,186.96/x
  3. Step 3: Cross multiply
    1,146,876.40x = 1,719,240.23 × 388,186.96
  4. Step 4: Simplify right side
    1,146,876.40x = 667,386,638,393.40
  5. Step 5: Solve for x
    x = 667,386,638,393.40/1,146,876.40
  6. Step 6: Final answer
    x = 581,916.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.