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Finding the Fourth Proportional to 313,168.36, 469,752.54 and 220,089.64

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Solution

The fourth proportional to 313,168.36, 469,752.54 and 220,089.64 is: 330,134.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,168.36 : 469,752.54 = 220,089.64 : x
  2. Step 2: Convert to fraction form
    313,168.36/469,752.54 = 220,089.64/x
  3. Step 3: Cross multiply
    313,168.36x = 469,752.54 × 220,089.64
  4. Step 4: Simplify right side
    313,168.36x = 103,387,667,417.69
  5. Step 5: Solve for x
    x = 103,387,667,417.69/313,168.36
  6. Step 6: Final answer
    x = 330,134.46

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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.