Home / 628,921,350.30-943,382,025.45-192,221,190.30

Finding the Fourth Proportional to 628,921,350.30, 943,382,025.45 and 192,221,190.30

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Solution

The fourth proportional to 628,921,350.30, 943,382,025.45 and 192,221,190.30 is: 288,331,785.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,921,350.30 : 943,382,025.45 = 192,221,190.30 : x
  2. Step 2: Convert to fraction form
    628,921,350.30/943,382,025.45 = 192,221,190.30/x
  3. Step 3: Cross multiply
    628,921,350.30x = 943,382,025.45 × 192,221,190.30
  4. Step 4: Simplify right side
    628,921,350.30x = 181,338,015,839,623,904
  5. Step 5: Solve for x
    x = 181,338,015,839,623,904/628,921,350.30
  6. Step 6: Final answer
    x = 288,331,785.45

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Double scale
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Similar ratio
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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.