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Finding the Fourth Proportional to 710,436.38, 1,064,736 and 531,539.78

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Solution

The fourth proportional to 710,436.38, 1,064,736 and 531,539.78 is: 796,622.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,436.38 : 1,064,736 = 531,539.78 : x
  2. Step 2: Convert to fraction form
    710,436.38/1,064,736 = 531,539.78/x
  3. Step 3: Cross multiply
    710,436.38x = 1,064,736 × 531,539.78
  4. Step 4: Simplify right side
    710,436.38x = 565,949,539,198.08
  5. Step 5: Solve for x
    x = 565,949,539,198.08/710,436.38
  6. Step 6: Final answer
    x = 796,622.41

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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.