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Finding the Fourth Proportional to 839,809,043.90, 1,259,713,565.85 and 773,296,250.30

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Solution

The fourth proportional to 839,809,043.90, 1,259,713,565.85 and 773,296,250.30 is: 1,159,944,375.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,043.90 : 1,259,713,565.85 = 773,296,250.30 : x
  2. Step 2: Convert to fraction form
    839,809,043.90/1,259,713,565.85 = 773,296,250.30/x
  3. Step 3: Cross multiply
    839,809,043.90x = 1,259,713,565.85 × 773,296,250.30
  4. Step 4: Simplify right side
    839,809,043.90x = 974,131,776,923,847,040
  5. Step 5: Solve for x
    x = 974,131,776,923,847,040/839,809,043.90
  6. Step 6: Final answer
    x = 1,159,944,375.45

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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.