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Finding the Fourth Proportional to 527,298.23, 727,671.33 and 285,580.80

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Solution

The fourth proportional to 527,298.23, 727,671.33 and 285,580.80 is: 394,101.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,298.23 : 727,671.33 = 285,580.80 : x
  2. Step 2: Convert to fraction form
    527,298.23/727,671.33 = 285,580.80/x
  3. Step 3: Cross multiply
    527,298.23x = 727,671.33 × 285,580.80
  4. Step 4: Simplify right side
    527,298.23x = 207,808,960,558.46
  5. Step 5: Solve for x
    x = 207,808,960,558.46/527,298.23
  6. Step 6: Final answer
    x = 394,101.38

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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.