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Finding the Fourth Proportional to 530,346.16, 731,910.36 and 304,025.68

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Solution

The fourth proportional to 530,346.16, 731,910.36 and 304,025.68 is: 419,574.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,346.16 : 731,910.36 = 304,025.68 : x
  2. Step 2: Convert to fraction form
    530,346.16/731,910.36 = 304,025.68/x
  3. Step 3: Cross multiply
    530,346.16x = 731,910.36 × 304,025.68
  4. Step 4: Simplify right side
    530,346.16x = 222,519,544,898.05
  5. Step 5: Solve for x
    x = 222,519,544,898.05/530,346.16
  6. Step 6: Final answer
    x = 419,574.16

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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.