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Finding the Fourth Proportional to 534,647.70, 800,999.55 and 423,062.10

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Solution

The fourth proportional to 534,647.70, 800,999.55 and 423,062.10 is: 633,824.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,647.70 : 800,999.55 = 423,062.10 : x
  2. Step 2: Convert to fraction form
    534,647.70/800,999.55 = 423,062.10/x
  3. Step 3: Cross multiply
    534,647.70x = 800,999.55 × 423,062.10
  4. Step 4: Simplify right side
    534,647.70x = 338,872,551,722.06
  5. Step 5: Solve for x
    x = 338,872,551,722.06/534,647.70
  6. Step 6: Final answer
    x = 633,824.01

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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.