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Finding the Fourth Proportional to 530,153.64, 731,589.06 and 303,820.20

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Solution

The fourth proportional to 530,153.64, 731,589.06 and 303,820.20 is: 419,258.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,153.64 : 731,589.06 = 303,820.20 : x
  2. Step 2: Convert to fraction form
    530,153.64/731,589.06 = 303,820.20/x
  3. Step 3: Cross multiply
    530,153.64x = 731,589.06 × 303,820.20
  4. Step 4: Simplify right side
    530,153.64x = 222,271,534,527.01
  5. Step 5: Solve for x
    x = 222,271,534,527.01/530,153.64
  6. Step 6: Final answer
    x = 419,258.72

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1.5x scale

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.