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Finding the Fourth Proportional to 624,981.21, 937,515.96 and 309,353.37

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Solution

The fourth proportional to 624,981.21, 937,515.96 and 309,353.37 is: 464,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,981.21 : 937,515.96 = 309,353.37 : x
  2. Step 2: Convert to fraction form
    624,981.21/937,515.96 = 309,353.37/x
  3. Step 3: Cross multiply
    624,981.21x = 937,515.96 × 309,353.37
  4. Step 4: Simplify right side
    624,981.21x = 290,023,721,654.79
  5. Step 5: Solve for x
    x = 290,023,721,654.79/624,981.21
  6. Step 6: Final answer
    x = 464,051.91

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1.5x scale

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.