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Finding the Fourth Proportional to 617,910.10, 866,318.30 and 617,910.10

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Solution

The fourth proportional to 617,910.10, 866,318.30 and 617,910.10 is: 866,318.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,910.10 : 866,318.30 = 617,910.10 : x
  2. Step 2: Convert to fraction form
    617,910.10/866,318.30 = 617,910.10/x
  3. Step 3: Cross multiply
    617,910.10x = 866,318.30 × 617,910.10
  4. Step 4: Simplify right side
    617,910.10x = 535,306,827,384.83
  5. Step 5: Solve for x
    x = 535,306,827,384.83/617,910.10
  6. Step 6: Final answer
    x = 866,318.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.