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Finding the Fourth Proportional to 354,803.40, 532,205.10 and 228,832.20

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Solution

The fourth proportional to 354,803.40, 532,205.10 and 228,832.20 is: 343,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,803.40 : 532,205.10 = 228,832.20 : x
  2. Step 2: Convert to fraction form
    354,803.40/532,205.10 = 228,832.20/x
  3. Step 3: Cross multiply
    354,803.40x = 532,205.10 × 228,832.20
  4. Step 4: Simplify right side
    354,803.40x = 121,785,663,884.22
  5. Step 5: Solve for x
    x = 121,785,663,884.22/354,803.40
  6. Step 6: Final answer
    x = 343,248.30

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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.