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Finding the Fourth Proportional to 357,396.35, 534,754.58 and 212,773.18

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Solution

The fourth proportional to 357,396.35, 534,754.58 and 212,773.18 is: 318,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,396.35 : 534,754.58 = 212,773.18 : x
  2. Step 2: Convert to fraction form
    357,396.35/534,754.58 = 212,773.18/x
  3. Step 3: Cross multiply
    357,396.35x = 534,754.58 × 212,773.18
  4. Step 4: Simplify right side
    357,396.35x = 113,781,432,506.16
  5. Step 5: Solve for x
    x = 113,781,432,506.16/357,396.35
  6. Step 6: Final answer
    x = 318,362.04

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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.