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Finding the Fourth Proportional to 828,873,098.70, 1,243,309,648.05 and 828,873,098.70

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Solution

The fourth proportional to 828,873,098.70, 1,243,309,648.05 and 828,873,098.70 is: 1,243,309,648.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,873,098.70 : 1,243,309,648.05 = 828,873,098.70 : x
  2. Step 2: Convert to fraction form
    828,873,098.70/1,243,309,648.05 = 828,873,098.70/x
  3. Step 3: Cross multiply
    828,873,098.70x = 1,243,309,648.05 × 828,873,098.70
  4. Step 4: Simplify right side
    828,873,098.70x = 1,030,545,920,622,809,984
  5. Step 5: Solve for x
    x = 1,030,545,920,622,809,984/828,873,098.70
  6. Step 6: Final answer
    x = 1,243,309,648.05

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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.