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Finding the Fourth Proportional to 563,343.34, 777,414.12 and 308,694.53

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Solution

The fourth proportional to 563,343.34, 777,414.12 and 308,694.53 is: 425,998.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,343.34 : 777,414.12 = 308,694.53 : x
  2. Step 2: Convert to fraction form
    563,343.34/777,414.12 = 308,694.53/x
  3. Step 3: Cross multiply
    563,343.34x = 777,414.12 × 308,694.53
  4. Step 4: Simplify right side
    563,343.34x = 239,983,486,388.76
  5. Step 5: Solve for x
    x = 239,983,486,388.76/563,343.34
  6. Step 6: Final answer
    x = 425,998.62

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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.