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Finding the Fourth Proportional to 527,247, 727,599.78 and 285,529.50

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Solution

The fourth proportional to 527,247, 727,599.78 and 285,529.50 is: 394,030.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,247 : 727,599.78 = 285,529.50 : x
  2. Step 2: Convert to fraction form
    527,247/727,599.78 = 285,529.50/x
  3. Step 3: Cross multiply
    527,247x = 727,599.78 × 285,529.50
  4. Step 4: Simplify right side
    527,247x = 207,751,201,383.51
  5. Step 5: Solve for x
    x = 207,751,201,383.51/527,247
  6. Step 6: Final answer
    x = 394,030.13

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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.