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Finding the Fourth Proportional to 345,688.05, 477,154.94 and 200,530.51

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Solution

The fourth proportional to 345,688.05, 477,154.94 and 200,530.51 is: 276,793.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,688.05 : 477,154.94 = 200,530.51 : x
  2. Step 2: Convert to fraction form
    345,688.05/477,154.94 = 200,530.51/x
  3. Step 3: Cross multiply
    345,688.05x = 477,154.94 × 200,530.51
  4. Step 4: Simplify right side
    345,688.05x = 95,684,123,467.22
  5. Step 5: Solve for x
    x = 95,684,123,467.22/345,688.05
  6. Step 6: Final answer
    x = 276,793.26

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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.