Home / 911,918.20-1,258,600.20-617,434.36

Finding the Fourth Proportional to 911,918.20, 1,258,600.20 and 617,434.36

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Solution

The fourth proportional to 911,918.20, 1,258,600.20 and 617,434.36 is: 852,163.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,918.20 : 1,258,600.20 = 617,434.36 : x
  2. Step 2: Convert to fraction form
    911,918.20/1,258,600.20 = 617,434.36/x
  3. Step 3: Cross multiply
    911,918.20x = 1,258,600.20 × 617,434.36
  4. Step 4: Simplify right side
    911,918.20x = 777,103,008,982.87
  5. Step 5: Solve for x
    x = 777,103,008,982.87/911,918.20
  6. Step 6: Final answer
    x = 852,163.07

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1.5x scale

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.