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Finding the Fourth Proportional to 472,955.80, 709,871.10 and 236,468.20

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Solution

The fourth proportional to 472,955.80, 709,871.10 and 236,468.20 is: 354,920.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,955.80 : 709,871.10 = 236,468.20 : x
  2. Step 2: Convert to fraction form
    472,955.80/709,871.10 = 236,468.20/x
  3. Step 3: Cross multiply
    472,955.80x = 709,871.10 × 236,468.20
  4. Step 4: Simplify right side
    472,955.80x = 167,861,941,249.02
  5. Step 5: Solve for x
    x = 167,861,941,249.02/472,955.80
  6. Step 6: Final answer
    x = 354,920.99

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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.