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Finding the Fourth Proportional to 527,500.66, 727,951.08 and 285,784.90

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Solution

The fourth proportional to 527,500.66, 727,951.08 and 285,784.90 is: 394,383.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,500.66 : 727,951.08 = 285,784.90 : x
  2. Step 2: Convert to fraction form
    527,500.66/727,951.08 = 285,784.90/x
  3. Step 3: Cross multiply
    527,500.66x = 727,951.08 × 285,784.90
  4. Step 4: Simplify right side
    527,500.66x = 208,037,426,602.69
  5. Step 5: Solve for x
    x = 208,037,426,602.69/527,500.66
  6. Step 6: Final answer
    x = 394,383.25

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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.