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Finding the Fourth Proportional to 473,521.89, 653,435.84 and 258,620.45

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Solution

The fourth proportional to 473,521.89, 653,435.84 and 258,620.45 is: 356,882.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,521.89 : 653,435.84 = 258,620.45 : x
  2. Step 2: Convert to fraction form
    473,521.89/653,435.84 = 258,620.45/x
  3. Step 3: Cross multiply
    473,521.89x = 653,435.84 × 258,620.45
  4. Step 4: Simplify right side
    473,521.89x = 168,991,868,366.30
  5. Step 5: Solve for x
    x = 168,991,868,366.30/473,521.89
  6. Step 6: Final answer
    x = 356,882.90

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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.