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Finding the Fourth Proportional to 424,950.73, 637,025.40 and 211,516.84

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Solution

The fourth proportional to 424,950.73, 637,025.40 and 211,516.84 is: 317,075.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,950.73 : 637,025.40 = 211,516.84 : x
  2. Step 2: Convert to fraction form
    424,950.73/637,025.40 = 211,516.84/x
  3. Step 3: Cross multiply
    424,950.73x = 637,025.40 × 211,516.84
  4. Step 4: Simplify right side
    424,950.73x = 134,741,599,607.74
  5. Step 5: Solve for x
    x = 134,741,599,607.74/424,950.73
  6. Step 6: Final answer
    x = 317,075.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.