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Finding the Fourth Proportional to 556,439.72, 834,646.62 and 303,965.96

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Solution

The fourth proportional to 556,439.72, 834,646.62 and 303,965.96 is: 455,941.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,439.72 : 834,646.62 = 303,965.96 : x
  2. Step 2: Convert to fraction form
    556,439.72/834,646.62 = 303,965.96/x
  3. Step 3: Cross multiply
    556,439.72x = 834,646.62 × 303,965.96
  4. Step 4: Simplify right side
    556,439.72x = 253,704,161,109.06
  5. Step 5: Solve for x
    x = 253,704,161,109.06/556,439.72
  6. Step 6: Final answer
    x = 455,941.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.