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Finding the Fourth Proportional to 387,866.84, 535,273.62 and 323,227.94

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Solution

The fourth proportional to 387,866.84, 535,273.62 and 323,227.94 is: 446,069.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,866.84 : 535,273.62 = 323,227.94 : x
  2. Step 2: Convert to fraction form
    387,866.84/535,273.62 = 323,227.94/x
  3. Step 3: Cross multiply
    387,866.84x = 535,273.62 × 323,227.94
  4. Step 4: Simplify right side
    387,866.84x = 173,015,389,528.94
  5. Step 5: Solve for x
    x = 173,015,389,528.94/387,866.84
  6. Step 6: Final answer
    x = 446,069.04

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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.