Home / 913,619.19-1,260,929.60-526,360.87

Finding the Fourth Proportional to 913,619.19, 1,260,929.60 and 526,360.87

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Solution

The fourth proportional to 913,619.19, 1,260,929.60 and 526,360.87 is: 726,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,619.19 : 1,260,929.60 = 526,360.87 : x
  2. Step 2: Convert to fraction form
    913,619.19/1,260,929.60 = 526,360.87/x
  3. Step 3: Cross multiply
    913,619.19x = 1,260,929.60 × 526,360.87
  4. Step 4: Simplify right side
    913,619.19x = 663,703,998,632.95
  5. Step 5: Solve for x
    x = 663,703,998,632.95/913,619.19
  6. Step 6: Final answer
    x = 726,455.85

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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.