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Finding the Fourth Proportional to 553,799.13, 764,243.22 and 299,150.34

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Solution

The fourth proportional to 553,799.13, 764,243.22 and 299,150.34 is: 412,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,799.13 : 764,243.22 = 299,150.34 : x
  2. Step 2: Convert to fraction form
    553,799.13/764,243.22 = 299,150.34/x
  3. Step 3: Cross multiply
    553,799.13x = 764,243.22 × 299,150.34
  4. Step 4: Simplify right side
    553,799.13x = 228,623,619,105.70
  5. Step 5: Solve for x
    x = 228,623,619,105.70/553,799.13
  6. Step 6: Final answer
    x = 412,827.70

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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.