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Finding the Fourth Proportional to 350,998.20, 526,497.30 and 217,445.40

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Solution

The fourth proportional to 350,998.20, 526,497.30 and 217,445.40 is: 326,168.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,998.20 : 526,497.30 = 217,445.40 : x
  2. Step 2: Convert to fraction form
    350,998.20/526,497.30 = 217,445.40/x
  3. Step 3: Cross multiply
    350,998.20x = 526,497.30 × 217,445.40
  4. Step 4: Simplify right side
    350,998.20x = 114,484,415,997.42
  5. Step 5: Solve for x
    x = 114,484,415,997.42/350,998.20
  6. Step 6: Final answer
    x = 326,168.10

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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.