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Finding the Fourth Proportional to 462,145.84, 637,651.96 and 268,438.45

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Solution

The fourth proportional to 462,145.84, 637,651.96 and 268,438.45 is: 370,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,145.84 : 637,651.96 = 268,438.45 : x
  2. Step 2: Convert to fraction form
    462,145.84/637,651.96 = 268,438.45/x
  3. Step 3: Cross multiply
    462,145.84x = 637,651.96 × 268,438.45
  4. Step 4: Simplify right side
    462,145.84x = 171,170,299,817.72
  5. Step 5: Solve for x
    x = 171,170,299,817.72/462,145.84
  6. Step 6: Final answer
    x = 370,381.57

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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.