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Finding the Fourth Proportional to 617,898.30, 862,958.10 and 617,898.30

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Solution

The fourth proportional to 617,898.30, 862,958.10 and 617,898.30 is: 862,958.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,898.30 : 862,958.10 = 617,898.30 : x
  2. Step 2: Convert to fraction form
    617,898.30/862,958.10 = 617,898.30/x
  3. Step 3: Cross multiply
    617,898.30x = 862,958.10 × 617,898.30
  4. Step 4: Simplify right side
    617,898.30x = 533,220,342,961.23
  5. Step 5: Solve for x
    x = 533,220,342,961.23/617,898.30
  6. Step 6: Final answer
    x = 862,958.10

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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.