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Finding the Fourth Proportional to 590,013.07, 813,923.25 and 372,491.31

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Solution

The fourth proportional to 590,013.07, 813,923.25 and 372,491.31 is: 513,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,013.07 : 813,923.25 = 372,491.31 : x
  2. Step 2: Convert to fraction form
    590,013.07/813,923.25 = 372,491.31/x
  3. Step 3: Cross multiply
    590,013.07x = 813,923.25 × 372,491.31
  4. Step 4: Simplify right side
    590,013.07x = 303,179,337,631.96
  5. Step 5: Solve for x
    x = 303,179,337,631.96/590,013.07
  6. Step 6: Final answer
    x = 513,851.90

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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.