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Finding the Fourth Proportional to 349,173.74, 481,657.10 and 220,061.64

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Solution

The fourth proportional to 349,173.74, 481,657.10 and 220,061.64 is: 303,557.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,173.74 : 481,657.10 = 220,061.64 : x
  2. Step 2: Convert to fraction form
    349,173.74/481,657.10 = 220,061.64/x
  3. Step 3: Cross multiply
    349,173.74x = 481,657.10 × 220,061.64
  4. Step 4: Simplify right side
    349,173.74x = 105,994,251,343.64
  5. Step 5: Solve for x
    x = 105,994,251,343.64/349,173.74
  6. Step 6: Final answer
    x = 303,557.34

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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.