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Finding the Fourth Proportional to 647,051.90, 970,577.85 and 411,439.10

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Solution

The fourth proportional to 647,051.90, 970,577.85 and 411,439.10 is: 617,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,051.90 : 970,577.85 = 411,439.10 : x
  2. Step 2: Convert to fraction form
    647,051.90/970,577.85 = 411,439.10/x
  3. Step 3: Cross multiply
    647,051.90x = 970,577.85 × 411,439.10
  4. Step 4: Simplify right side
    647,051.90x = 399,333,677,083.94
  5. Step 5: Solve for x
    x = 399,333,677,083.94/647,051.90
  6. Step 6: Final answer
    x = 617,158.65

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Similar ratio
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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.