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Finding the Fourth Proportional to 800,028,998.56, 1,206,039,877.18 and 746,698,894.48

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Solution

The fourth proportional to 800,028,998.56, 1,206,039,877.18 and 746,698,894.48 is: 1,125,645,001.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,028,998.56 : 1,206,039,877.18 = 746,698,894.48 : x
  2. Step 2: Convert to fraction form
    800,028,998.56/1,206,039,877.18 = 746,698,894.48/x
  3. Step 3: Cross multiply
    800,028,998.56x = 1,206,039,877.18 × 746,698,894.48
  4. Step 4: Simplify right side
    800,028,998.56x = 900,548,642,989,101,056
  5. Step 5: Solve for x
    x = 900,548,642,989,101,056/800,028,998.56
  6. Step 6: Final answer
    x = 1,125,645,001.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.