Home / 830,185.20-1,245,277.80-725,209.20

Finding the Fourth Proportional to 830,185.20, 1,245,277.80 and 725,209.20

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Solution

The fourth proportional to 830,185.20, 1,245,277.80 and 725,209.20 is: 1,087,813.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,185.20 : 1,245,277.80 = 725,209.20 : x
  2. Step 2: Convert to fraction form
    830,185.20/1,245,277.80 = 725,209.20/x
  3. Step 3: Cross multiply
    830,185.20x = 1,245,277.80 × 725,209.20
  4. Step 4: Simplify right side
    830,185.20x = 903,086,917,115.76
  5. Step 5: Solve for x
    x = 903,086,917,115.76/830,185.20
  6. Step 6: Final answer
    x = 1,087,813.80

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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.