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Finding the Fourth Proportional to 328,442.76, 453,251.84 and 185,205.20

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Solution

The fourth proportional to 328,442.76, 453,251.84 and 185,205.20 is: 255,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,442.76 : 453,251.84 = 185,205.20 : x
  2. Step 2: Convert to fraction form
    328,442.76/453,251.84 = 185,205.20/x
  3. Step 3: Cross multiply
    328,442.76x = 453,251.84 × 185,205.20
  4. Step 4: Simplify right side
    328,442.76x = 83,944,594,485.28
  5. Step 5: Solve for x
    x = 83,944,594,485.28/328,442.76
  6. Step 6: Final answer
    x = 255,583.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.