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Finding the Fourth Proportional to 473,520.87, 653,448.06 and 258,661.89

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Solution

The fourth proportional to 473,520.87, 653,448.06 and 258,661.89 is: 356,947.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,520.87 : 653,448.06 = 258,661.89 : x
  2. Step 2: Convert to fraction form
    473,520.87/653,448.06 = 258,661.89/x
  3. Step 3: Cross multiply
    473,520.87x = 653,448.06 × 258,661.89
  4. Step 4: Simplify right side
    473,520.87x = 169,022,110,216.43
  5. Step 5: Solve for x
    x = 169,022,110,216.43/473,520.87
  6. Step 6: Final answer
    x = 356,947.54

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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.