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Finding the Fourth Proportional to 883,677.80, 1,325,516.70 and 322,639.40

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Solution

The fourth proportional to 883,677.80, 1,325,516.70 and 322,639.40 is: 483,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,677.80 : 1,325,516.70 = 322,639.40 : x
  2. Step 2: Convert to fraction form
    883,677.80/1,325,516.70 = 322,639.40/x
  3. Step 3: Cross multiply
    883,677.80x = 1,325,516.70 × 322,639.40
  4. Step 4: Simplify right side
    883,677.80x = 427,663,912,777.98
  5. Step 5: Solve for x
    x = 427,663,912,777.98/883,677.80
  6. Step 6: Final answer
    x = 483,959.10

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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.