Home / 1,187,512.20-1,781,268.30-346,091.40

Finding the Fourth Proportional to 1,187,512.20, 1,781,268.30 and 346,091.40

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Solution

The fourth proportional to 1,187,512.20, 1,781,268.30 and 346,091.40 is: 519,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,512.20 : 1,781,268.30 = 346,091.40 : x
  2. Step 2: Convert to fraction form
    1,187,512.20/1,781,268.30 = 346,091.40/x
  3. Step 3: Cross multiply
    1,187,512.20x = 1,781,268.30 × 346,091.40
  4. Step 4: Simplify right side
    1,187,512.20x = 616,481,639,722.62
  5. Step 5: Solve for x
    x = 616,481,639,722.62/1,187,512.20
  6. Step 6: Final answer
    x = 519,137.10

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1.5x scale

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.