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Finding the Fourth Proportional to 447,227.90, 671,152.90 and 289,064.06

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Solution

The fourth proportional to 447,227.90, 671,152.90 and 289,064.06 is: 433,797.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,227.90 : 671,152.90 = 289,064.06 : x
  2. Step 2: Convert to fraction form
    447,227.90/671,152.90 = 289,064.06/x
  3. Step 3: Cross multiply
    447,227.90x = 671,152.90 × 289,064.06
  4. Step 4: Simplify right side
    447,227.90x = 194,006,183,110.00
  5. Step 5: Solve for x
    x = 194,006,183,110.00/447,227.90
  6. Step 6: Final answer
    x = 433,797.14

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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.