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Finding the Fourth Proportional to 553,897.46, 764,377.53 and 299,247.86

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Solution

The fourth proportional to 553,897.46, 764,377.53 and 299,247.86 is: 412,961.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,897.46 : 764,377.53 = 299,247.86 : x
  2. Step 2: Convert to fraction form
    553,897.46/764,377.53 = 299,247.86/x
  3. Step 3: Cross multiply
    553,897.46x = 764,377.53 × 299,247.86
  4. Step 4: Simplify right side
    553,897.46x = 228,738,340,084.59
  5. Step 5: Solve for x
    x = 228,738,340,084.59/553,897.46
  6. Step 6: Final answer
    x = 412,961.53

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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.