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Finding the Fourth Proportional to 569,407.70, 854,439.60 and 214,676.30

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Solution

The fourth proportional to 569,407.70, 854,439.60 and 214,676.30 is: 322,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,407.70 : 854,439.60 = 214,676.30 : x
  2. Step 2: Convert to fraction form
    569,407.70/854,439.60 = 214,676.30/x
  3. Step 3: Cross multiply
    569,407.70x = 854,439.60 × 214,676.30
  4. Step 4: Simplify right side
    569,407.70x = 183,427,931,901.48
  5. Step 5: Solve for x
    x = 183,427,931,901.48/569,407.70
  6. Step 6: Final answer
    x = 322,138.13

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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.