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Finding the Fourth Proportional to 619,098.76, 854,538.78 and 404,272.36

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Solution

The fourth proportional to 619,098.76, 854,538.78 and 404,272.36 is: 558,015.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,098.76 : 854,538.78 = 404,272.36 : x
  2. Step 2: Convert to fraction form
    619,098.76/854,538.78 = 404,272.36/x
  3. Step 3: Cross multiply
    619,098.76x = 854,538.78 × 404,272.36
  4. Step 4: Simplify right side
    619,098.76x = 345,466,409,302.12
  5. Step 5: Solve for x
    x = 345,466,409,302.12/619,098.76
  6. Step 6: Final answer
    x = 558,015.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.