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Finding the Fourth Proportional to 523,328.40, 784,992.60 and 374,029.20

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Solution

The fourth proportional to 523,328.40, 784,992.60 and 374,029.20 is: 561,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,328.40 : 784,992.60 = 374,029.20 : x
  2. Step 2: Convert to fraction form
    523,328.40/784,992.60 = 374,029.20/x
  3. Step 3: Cross multiply
    523,328.40x = 784,992.60 × 374,029.20
  4. Step 4: Simplify right side
    523,328.40x = 293,610,154,183.92
  5. Step 5: Solve for x
    x = 293,610,154,183.92/523,328.40
  6. Step 6: Final answer
    x = 561,043.80

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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.