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Finding the Fourth Proportional to 1,368,627.84, 2,051,895.24 and 828,766.62

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Solution

The fourth proportional to 1,368,627.84, 2,051,895.24 and 828,766.62 is: 1,242,516.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,627.84 : 2,051,895.24 = 828,766.62 : x
  2. Step 2: Convert to fraction form
    1,368,627.84/2,051,895.24 = 828,766.62/x
  3. Step 3: Cross multiply
    1,368,627.84x = 2,051,895.24 × 828,766.62
  4. Step 4: Simplify right side
    1,368,627.84x = 1,700,542,282,648.89
  5. Step 5: Solve for x
    x = 1,700,542,282,648.89/1,368,627.84
  6. Step 6: Final answer
    x = 1,242,516.21

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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.