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Finding the Fourth Proportional to 545,583.60, 818,375.40 and 356,626.80

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Solution

The fourth proportional to 545,583.60, 818,375.40 and 356,626.80 is: 534,940.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,583.60 : 818,375.40 = 356,626.80 : x
  2. Step 2: Convert to fraction form
    545,583.60/818,375.40 = 356,626.80/x
  3. Step 3: Cross multiply
    545,583.60x = 818,375.40 × 356,626.80
  4. Step 4: Simplify right side
    545,583.60x = 291,854,600,100.72
  5. Step 5: Solve for x
    x = 291,854,600,100.72/545,583.60
  6. Step 6: Final answer
    x = 534,940.20

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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.