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Finding the Fourth Proportional to 559,243.71, 771,510.69 and 377,889.50

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Solution

The fourth proportional to 559,243.71, 771,510.69 and 377,889.50 is: 521,321.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,243.71 : 771,510.69 = 377,889.50 : x
  2. Step 2: Convert to fraction form
    559,243.71/771,510.69 = 377,889.50/x
  3. Step 3: Cross multiply
    559,243.71x = 771,510.69 × 377,889.50
  4. Step 4: Simplify right side
    559,243.71x = 291,545,790,817.53
  5. Step 5: Solve for x
    x = 291,545,790,817.53/559,243.71
  6. Step 6: Final answer
    x = 521,321.54

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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.