Home / 811,139.40-1,217,400.30-362,550.60

Finding the Fourth Proportional to 811,139.40, 1,217,400.30 and 362,550.60

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Solution

The fourth proportional to 811,139.40, 1,217,400.30 and 362,550.60 is: 544,134.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,139.40 : 1,217,400.30 = 362,550.60 : x
  2. Step 2: Convert to fraction form
    811,139.40/1,217,400.30 = 362,550.60/x
  3. Step 3: Cross multiply
    811,139.40x = 1,217,400.30 × 362,550.60
  4. Step 4: Simplify right side
    811,139.40x = 441,369,209,205.18
  5. Step 5: Solve for x
    x = 441,369,209,205.18/811,139.40
  6. Step 6: Final answer
    x = 544,134.84

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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.