Home / 1,913,887.38-2,641,156.69-1,042,719.62

Finding the Fourth Proportional to 1,913,887.38, 2,641,156.69 and 1,042,719.62

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Solution

The fourth proportional to 1,913,887.38, 2,641,156.69 and 1,042,719.62 is: 1,438,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,887.38 : 2,641,156.69 = 1,042,719.62 : x
  2. Step 2: Convert to fraction form
    1,913,887.38/2,641,156.69 = 1,042,719.62/x
  3. Step 3: Cross multiply
    1,913,887.38x = 2,641,156.69 × 1,042,719.62
  4. Step 4: Simplify right side
    1,913,887.38x = 2,753,985,900,157.26
  5. Step 5: Solve for x
    x = 2,753,985,900,157.26/1,913,887.38
  6. Step 6: Final answer
    x = 1,438,948.77

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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.