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Finding the Fourth Proportional to 399,235.46, 595,797.78 and 356,637.16

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Solution

The fourth proportional to 399,235.46, 595,797.78 and 356,637.16 is: 532,226.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,235.46 : 595,797.78 = 356,637.16 : x
  2. Step 2: Convert to fraction form
    399,235.46/595,797.78 = 356,637.16/x
  3. Step 3: Cross multiply
    399,235.46x = 595,797.78 × 356,637.16
  4. Step 4: Simplify right side
    399,235.46x = 212,483,628,193.51
  5. Step 5: Solve for x
    x = 212,483,628,193.51/399,235.46
  6. Step 6: Final answer
    x = 532,226.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.