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Finding the Fourth Proportional to 472,936.30, 709,131.39 and 323,357.74

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Solution

The fourth proportional to 472,936.30, 709,131.39 and 323,357.74 is: 484,849.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,936.30 : 709,131.39 = 323,357.74 : x
  2. Step 2: Convert to fraction form
    472,936.30/709,131.39 = 323,357.74/x
  3. Step 3: Cross multiply
    472,936.30x = 709,131.39 × 323,357.74
  4. Step 4: Simplify right side
    472,936.30x = 229,303,123,633.46
  5. Step 5: Solve for x
    x = 229,303,123,633.46/472,936.30
  6. Step 6: Final answer
    x = 484,849.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.