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Finding the Fourth Proportional to 553,800.38, 764,244.93 and 299,151.56

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Solution

The fourth proportional to 553,800.38, 764,244.93 and 299,151.56 is: 412,829.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,800.38 : 764,244.93 = 299,151.56 : x
  2. Step 2: Convert to fraction form
    553,800.38/764,244.93 = 299,151.56/x
  3. Step 3: Cross multiply
    553,800.38x = 764,244.93 × 299,151.56
  4. Step 4: Simplify right side
    553,800.38x = 228,625,061,535.83
  5. Step 5: Solve for x
    x = 228,625,061,535.83/553,800.38
  6. Step 6: Final answer
    x = 412,829.37

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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.