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Finding the Fourth Proportional to 473,212.78, 653,043.54 and 258,361.90

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Solution

The fourth proportional to 473,212.78, 653,043.54 and 258,361.90 is: 356,544.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,212.78 : 653,043.54 = 258,361.90 : x
  2. Step 2: Convert to fraction form
    473,212.78/653,043.54 = 258,361.90/x
  3. Step 3: Cross multiply
    473,212.78x = 653,043.54 × 258,361.90
  4. Step 4: Simplify right side
    473,212.78x = 168,721,569,777.13
  5. Step 5: Solve for x
    x = 168,721,569,777.13/473,212.78
  6. Step 6: Final answer
    x = 356,544.83

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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.