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Finding the Fourth Proportional to 531,777.77, 733,863.32 and 290,068.98

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Solution

The fourth proportional to 531,777.77, 733,863.32 and 290,068.98 is: 400,300.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,777.77 : 733,863.32 = 290,068.98 : x
  2. Step 2: Convert to fraction form
    531,777.77/733,863.32 = 290,068.98/x
  3. Step 3: Cross multiply
    531,777.77x = 733,863.32 × 290,068.98
  4. Step 4: Simplify right side
    531,777.77x = 212,870,983,241.47
  5. Step 5: Solve for x
    x = 212,870,983,241.47/531,777.77
  6. Step 6: Final answer
    x = 400,300.64

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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.