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Finding the Fourth Proportional to 527,195.33, 727,528.25 and 285,477.89

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Solution

The fourth proportional to 527,195.33, 727,528.25 and 285,477.89 is: 393,958.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,195.33 : 727,528.25 = 285,477.89 : x
  2. Step 2: Convert to fraction form
    527,195.33/727,528.25 = 285,477.89/x
  3. Step 3: Cross multiply
    527,195.33x = 727,528.25 × 285,477.89
  4. Step 4: Simplify right side
    527,195.33x = 207,693,228,298.00
  5. Step 5: Solve for x
    x = 207,693,228,298.00/527,195.33
  6. Step 6: Final answer
    x = 393,958.78

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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.