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Finding the Fourth Proportional to 814,921,518.30, 1,222,382,277.45 and 814,921,518.30

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Solution

The fourth proportional to 814,921,518.30, 1,222,382,277.45 and 814,921,518.30 is: 1,222,382,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,921,518.30 : 1,222,382,277.45 = 814,921,518.30 : x
  2. Step 2: Convert to fraction form
    814,921,518.30/1,222,382,277.45 = 814,921,518.30/x
  3. Step 3: Cross multiply
    814,921,518.30x = 1,222,382,277.45 × 814,921,518.30
  4. Step 4: Simplify right side
    814,921,518.30x = 996,145,621,482,565,888
  5. Step 5: Solve for x
    x = 996,145,621,482,565,888/814,921,518.30
  6. Step 6: Final answer
    x = 1,222,382,277.45

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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.