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Finding the Fourth Proportional to 552,638.70, 828,472.05 and 374,568.30

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Solution

The fourth proportional to 552,638.70, 828,472.05 and 374,568.30 is: 561,523.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,638.70 : 828,472.05 = 374,568.30 : x
  2. Step 2: Convert to fraction form
    552,638.70/828,472.05 = 374,568.30/x
  3. Step 3: Cross multiply
    552,638.70x = 828,472.05 × 374,568.30
  4. Step 4: Simplify right side
    552,638.70x = 310,319,367,366.02
  5. Step 5: Solve for x
    x = 310,319,367,366.02/552,638.70
  6. Step 6: Final answer
    x = 561,523.05

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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.