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Finding the Fourth Proportional to 635,953.70, 877,424.73 and 381,211.94

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Solution

The fourth proportional to 635,953.70, 877,424.73 and 381,211.94 is: 525,957.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,953.70 : 877,424.73 = 381,211.94 : x
  2. Step 2: Convert to fraction form
    635,953.70/877,424.73 = 381,211.94/x
  3. Step 3: Cross multiply
    635,953.70x = 877,424.73 × 381,211.94
  4. Step 4: Simplify right side
    635,953.70x = 334,484,783,527.28
  5. Step 5: Solve for x
    x = 334,484,783,527.28/635,953.70
  6. Step 6: Final answer
    x = 525,957.76

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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.