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Finding the Fourth Proportional to 365,507.70, 548,261.55 and 155,118.30

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Solution

The fourth proportional to 365,507.70, 548,261.55 and 155,118.30 is: 232,677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,507.70 : 548,261.55 = 155,118.30 : x
  2. Step 2: Convert to fraction form
    365,507.70/548,261.55 = 155,118.30/x
  3. Step 3: Cross multiply
    365,507.70x = 548,261.55 × 155,118.30
  4. Step 4: Simplify right side
    365,507.70x = 85,045,399,591.37
  5. Step 5: Solve for x
    x = 85,045,399,591.37/365,507.70
  6. Step 6: Final answer
    x = 232,677.45

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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.