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Finding the Fourth Proportional to 398,801.80, 596,744.70 and 293,825.80

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Solution

The fourth proportional to 398,801.80, 596,744.70 and 293,825.80 is: 439,664.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,801.80 : 596,744.70 = 293,825.80 : x
  2. Step 2: Convert to fraction form
    398,801.80/596,744.70 = 293,825.80/x
  3. Step 3: Cross multiply
    398,801.80x = 596,744.70 × 293,825.80
  4. Step 4: Simplify right side
    398,801.80x = 175,338,988,873.26
  5. Step 5: Solve for x
    x = 175,338,988,873.26/398,801.80
  6. Step 6: Final answer
    x = 439,664.49

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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.