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Finding the Fourth Proportional to 573,356.07, 791,236.51 and 311,711.92

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Solution

The fourth proportional to 573,356.07, 791,236.51 and 311,711.92 is: 430,165.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,356.07 : 791,236.51 = 311,711.92 : x
  2. Step 2: Convert to fraction form
    573,356.07/791,236.51 = 311,711.92/x
  3. Step 3: Cross multiply
    573,356.07x = 791,236.51 × 311,711.92
  4. Step 4: Simplify right side
    573,356.07x = 246,637,848,948.83
  5. Step 5: Solve for x
    x = 246,637,848,948.83/573,356.07
  6. Step 6: Final answer
    x = 430,165.24

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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.