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Finding the Fourth Proportional to 329,145.40, 493,718.10 and 276,001.30

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Solution

The fourth proportional to 329,145.40, 493,718.10 and 276,001.30 is: 414,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,145.40 : 493,718.10 = 276,001.30 : x
  2. Step 2: Convert to fraction form
    329,145.40/493,718.10 = 276,001.30/x
  3. Step 3: Cross multiply
    329,145.40x = 493,718.10 × 276,001.30
  4. Step 4: Simplify right side
    329,145.40x = 136,266,837,433.53
  5. Step 5: Solve for x
    x = 136,266,837,433.53/329,145.40
  6. Step 6: Final answer
    x = 414,001.95

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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.