Home / 1,290,424.68-1,935,429.66-403,960.68

Finding the Fourth Proportional to 1,290,424.68, 1,935,429.66 and 403,960.68

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Solution

The fourth proportional to 1,290,424.68, 1,935,429.66 and 403,960.68 is: 605,876.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,424.68 : 1,935,429.66 = 403,960.68 : x
  2. Step 2: Convert to fraction form
    1,290,424.68/1,935,429.66 = 403,960.68/x
  3. Step 3: Cross multiply
    1,290,424.68x = 1,935,429.66 × 403,960.68
  4. Step 4: Simplify right side
    1,290,424.68x = 781,837,481,545.77
  5. Step 5: Solve for x
    x = 781,837,481,545.77/1,290,424.68
  6. Step 6: Final answer
    x = 605,876.11

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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.