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Finding the Fourth Proportional to 365,090.55, 547,471.80 and 140,376.30

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Solution

The fourth proportional to 365,090.55, 547,471.80 and 140,376.30 is: 210,501.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,090.55 : 547,471.80 = 140,376.30 : x
  2. Step 2: Convert to fraction form
    365,090.55/547,471.80 = 140,376.30/x
  3. Step 3: Cross multiply
    365,090.55x = 547,471.80 × 140,376.30
  4. Step 4: Simplify right side
    365,090.55x = 76,852,065,638.34
  5. Step 5: Solve for x
    x = 76,852,065,638.34/365,090.55
  6. Step 6: Final answer
    x = 210,501.38

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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.