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Finding the Fourth Proportional to 922,640.23, 1,273,245.42 and 514,731.88

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Solution

The fourth proportional to 922,640.23, 1,273,245.42 and 514,731.88 is: 710,331.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,640.23 : 1,273,245.42 = 514,731.88 : x
  2. Step 2: Convert to fraction form
    922,640.23/1,273,245.42 = 514,731.88/x
  3. Step 3: Cross multiply
    922,640.23x = 1,273,245.42 × 514,731.88
  4. Step 4: Simplify right side
    922,640.23x = 655,380,008,737.99
  5. Step 5: Solve for x
    x = 655,380,008,737.99/922,640.23
  6. Step 6: Final answer
    x = 710,331.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.