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Finding the Fourth Proportional to 620,156.60, 930,234.90 and 541,424.60

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Solution

The fourth proportional to 620,156.60, 930,234.90 and 541,424.60 is: 812,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,156.60 : 930,234.90 = 541,424.60 : x
  2. Step 2: Convert to fraction form
    620,156.60/930,234.90 = 541,424.60/x
  3. Step 3: Cross multiply
    620,156.60x = 930,234.90 × 541,424.60
  4. Step 4: Simplify right side
    620,156.60x = 503,652,058,638.54
  5. Step 5: Solve for x
    x = 503,652,058,638.54/620,156.60
  6. Step 6: Final answer
    x = 812,136.90

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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.