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Finding the Fourth Proportional to 313,900.53, 433,154.86 and 174,202.66

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Solution

The fourth proportional to 313,900.53, 433,154.86 and 174,202.66 is: 240,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,900.53 : 433,154.86 = 174,202.66 : x
  2. Step 2: Convert to fraction form
    313,900.53/433,154.86 = 174,202.66/x
  3. Step 3: Cross multiply
    313,900.53x = 433,154.86 × 174,202.66
  4. Step 4: Simplify right side
    313,900.53x = 75,456,728,803.93
  5. Step 5: Solve for x
    x = 75,456,728,803.93/313,900.53
  6. Step 6: Final answer
    x = 240,384.20

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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.