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Finding the Fourth Proportional to 552,564.60, 828,846.90 and 315,931.20

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Solution

The fourth proportional to 552,564.60, 828,846.90 and 315,931.20 is: 473,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,564.60 : 828,846.90 = 315,931.20 : x
  2. Step 2: Convert to fraction form
    552,564.60/828,846.90 = 315,931.20/x
  3. Step 3: Cross multiply
    552,564.60x = 828,846.90 × 315,931.20
  4. Step 4: Simplify right side
    552,564.60x = 261,858,595,733.28
  5. Step 5: Solve for x
    x = 261,858,595,733.28/552,564.60
  6. Step 6: Final answer
    x = 473,896.80

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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.