Home / 1,133,910.40-1,700,865.60-661,129.60

Finding the Fourth Proportional to 1,133,910.40, 1,700,865.60 and 661,129.60

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Solution

The fourth proportional to 1,133,910.40, 1,700,865.60 and 661,129.60 is: 991,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,910.40 : 1,700,865.60 = 661,129.60 : x
  2. Step 2: Convert to fraction form
    1,133,910.40/1,700,865.60 = 661,129.60/x
  3. Step 3: Cross multiply
    1,133,910.40x = 1,700,865.60 × 661,129.60
  4. Step 4: Simplify right side
    1,133,910.40x = 1,124,492,593,781.76
  5. Step 5: Solve for x
    x = 1,124,492,593,781.76/1,133,910.40
  6. Step 6: Final answer
    x = 991,694.40

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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.