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Finding the Fourth Proportional to 530,069.64, 731,482.92 and 303,700.56

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Solution

The fourth proportional to 530,069.64, 731,482.92 and 303,700.56 is: 419,099.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,069.64 : 731,482.92 = 303,700.56 : x
  2. Step 2: Convert to fraction form
    530,069.64/731,482.92 = 303,700.56/x
  3. Step 3: Cross multiply
    530,069.64x = 731,482.92 × 303,700.56
  4. Step 4: Simplify right side
    530,069.64x = 222,151,772,434.44
  5. Step 5: Solve for x
    x = 222,151,772,434.44/530,069.64
  6. Step 6: Final answer
    x = 419,099.22

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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.