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Finding the Fourth Proportional to 472,628.39, 652,041.50 and 291,025.37

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Solution

The fourth proportional to 472,628.39, 652,041.50 and 291,025.37 is: 401,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,628.39 : 652,041.50 = 291,025.37 : x
  2. Step 2: Convert to fraction form
    472,628.39/652,041.50 = 291,025.37/x
  3. Step 3: Cross multiply
    472,628.39x = 652,041.50 × 291,025.37
  4. Step 4: Simplify right side
    472,628.39x = 189,760,618,967.83
  5. Step 5: Solve for x
    x = 189,760,618,967.83/472,628.39
  6. Step 6: Final answer
    x = 401,500.68

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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.