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Finding the Fourth Proportional to 569,639.70, 854,787.60 and 214,908.30

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Solution

The fourth proportional to 569,639.70, 854,787.60 and 214,908.30 is: 322,486.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,639.70 : 854,787.60 = 214,908.30 : x
  2. Step 2: Convert to fraction form
    569,639.70/854,787.60 = 214,908.30/x
  3. Step 3: Cross multiply
    569,639.70x = 854,787.60 × 214,908.30
  4. Step 4: Simplify right side
    569,639.70x = 183,700,949,977.08
  5. Step 5: Solve for x
    x = 183,700,949,977.08/569,639.70
  6. Step 6: Final answer
    x = 322,486.21

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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.