Home / 1,233,344.78-1,702,028.40-689,510.78

Finding the Fourth Proportional to 1,233,344.78, 1,702,028.40 and 689,510.78

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Solution

The fourth proportional to 1,233,344.78, 1,702,028.40 and 689,510.78 is: 951,531.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233,344.78 : 1,702,028.40 = 689,510.78 : x
  2. Step 2: Convert to fraction form
    1,233,344.78/1,702,028.40 = 689,510.78/x
  3. Step 3: Cross multiply
    1,233,344.78x = 1,702,028.40 × 689,510.78
  4. Step 4: Simplify right side
    1,233,344.78x = 1,173,566,929,666.15
  5. Step 5: Solve for x
    x = 1,173,566,929,666.15/1,233,344.78
  6. Step 6: Final answer
    x = 951,531.92

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Double scale
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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.