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Finding the Fourth Proportional to 1,000,560,816.50, 1,380,774,057.65 and 554,552,974.80

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Solution

The fourth proportional to 1,000,560,816.50, 1,380,774,057.65 and 554,552,974.80 is: 765,283,177.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,560,816.50 : 1,380,774,057.65 = 554,552,974.80 : x
  2. Step 2: Convert to fraction form
    1,000,560,816.50/1,380,774,057.65 = 554,552,974.80/x
  3. Step 3: Cross multiply
    1,000,560,816.50x = 1,380,774,057.65 × 554,552,974.80
  4. Step 4: Simplify right side
    1,000,560,816.50x = 765,712,361,193,701,376
  5. Step 5: Solve for x
    x = 765,712,361,193,701,376/1,000,560,816.50
  6. Step 6: Final answer
    x = 765,283,177.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.