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Finding the Fourth Proportional to 828,873,061.70, 1,243,309,592.55 and 828,873,061.70

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Solution

The fourth proportional to 828,873,061.70, 1,243,309,592.55 and 828,873,061.70 is: 1,243,309,592.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,873,061.70 : 1,243,309,592.55 = 828,873,061.70 : x
  2. Step 2: Convert to fraction form
    828,873,061.70/1,243,309,592.55 = 828,873,061.70/x
  3. Step 3: Cross multiply
    828,873,061.70x = 1,243,309,592.55 × 828,873,061.70
  4. Step 4: Simplify right side
    828,873,061.70x = 1,030,545,828,617,897,984
  5. Step 5: Solve for x
    x = 1,030,545,828,617,897,984/828,873,061.70
  6. Step 6: Final answer
    x = 1,243,309,592.55

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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.