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Finding the Fourth Proportional to 527,554.76, 727,981.22 and 298,131.98

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Solution

The fourth proportional to 527,554.76, 727,981.22 and 298,131.98 is: 411,397.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,554.76 : 727,981.22 = 298,131.98 : x
  2. Step 2: Convert to fraction form
    527,554.76/727,981.22 = 298,131.98/x
  3. Step 3: Cross multiply
    527,554.76x = 727,981.22 × 298,131.98
  4. Step 4: Simplify right side
    527,554.76x = 217,034,479,626.84
  5. Step 5: Solve for x
    x = 217,034,479,626.84/527,554.76
  6. Step 6: Final answer
    x = 411,397.07

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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.