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Finding the Fourth Proportional to 527,092.89, 790,964.65 and 207,188.78

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Solution

The fourth proportional to 527,092.89, 790,964.65 and 207,188.78 is: 310,911.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,092.89 : 790,964.65 = 207,188.78 : x
  2. Step 2: Convert to fraction form
    527,092.89/790,964.65 = 207,188.78/x
  3. Step 3: Cross multiply
    527,092.89x = 790,964.65 × 207,188.78
  4. Step 4: Simplify right side
    527,092.89x = 163,879,003,093.03
  5. Step 5: Solve for x
    x = 163,879,003,093.03/527,092.89
  6. Step 6: Final answer
    x = 310,911.05

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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.