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Finding the Fourth Proportional to 524,404.60, 784,638.60 and 347,257.60

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Solution

The fourth proportional to 524,404.60, 784,638.60 and 347,257.60 is: 519,583.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,404.60 : 784,638.60 = 347,257.60 : x
  2. Step 2: Convert to fraction form
    524,404.60/784,638.60 = 347,257.60/x
  3. Step 3: Cross multiply
    524,404.60x = 784,638.60 × 347,257.60
  4. Step 4: Simplify right side
    524,404.60x = 272,471,717,103.36
  5. Step 5: Solve for x
    x = 272,471,717,103.36/524,404.60
  6. Step 6: Final answer
    x = 519,583.00

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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.