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Finding the Fourth Proportional to 707,356.60, 976,122.24 and 385,060

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Solution

The fourth proportional to 707,356.60, 976,122.24 and 385,060 is: 531,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,356.60 : 976,122.24 = 385,060 : x
  2. Step 2: Convert to fraction form
    707,356.60/976,122.24 = 385,060/x
  3. Step 3: Cross multiply
    707,356.60x = 976,122.24 × 385,060
  4. Step 4: Simplify right side
    707,356.60x = 375,865,629,734.40
  5. Step 5: Solve for x
    x = 375,865,629,734.40/707,356.60
  6. Step 6: Final answer
    x = 531,366.54

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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.