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Finding the Fourth Proportional to 527,331.39, 790,835.49 and 190,330.89

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Solution

The fourth proportional to 527,331.39, 790,835.49 and 190,330.89 is: 285,438.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,331.39 : 790,835.49 = 190,330.89 : x
  2. Step 2: Convert to fraction form
    527,331.39/790,835.49 = 190,330.89/x
  3. Step 3: Cross multiply
    527,331.39x = 790,835.49 × 190,330.89
  4. Step 4: Simplify right side
    527,331.39x = 150,520,422,655.29
  5. Step 5: Solve for x
    x = 150,520,422,655.29/527,331.39
  6. Step 6: Final answer
    x = 285,438.01

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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.