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Finding the Fourth Proportional to 356,900.46, 535,387.60 and 120,261.59

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Solution

The fourth proportional to 356,900.46, 535,387.60 and 120,261.59 is: 180,404.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,900.46 : 535,387.60 = 120,261.59 : x
  2. Step 2: Convert to fraction form
    356,900.46/535,387.60 = 120,261.59/x
  3. Step 3: Cross multiply
    356,900.46x = 535,387.60 × 120,261.59
  4. Step 4: Simplify right side
    356,900.46x = 64,386,565,749.33
  5. Step 5: Solve for x
    x = 64,386,565,749.33/356,900.46
  6. Step 6: Final answer
    x = 180,404.83

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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.