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Finding the Fourth Proportional to 514,487.63, 771,731.89 and 214,804.85

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Solution

The fourth proportional to 514,487.63, 771,731.89 and 214,804.85 is: 322,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,487.63 : 771,731.89 = 214,804.85 : x
  2. Step 2: Convert to fraction form
    514,487.63/771,731.89 = 214,804.85/x
  3. Step 3: Cross multiply
    514,487.63x = 771,731.89 × 214,804.85
  4. Step 4: Simplify right side
    514,487.63x = 165,771,748,476.00
  5. Step 5: Solve for x
    x = 165,771,748,476.00/514,487.63
  6. Step 6: Final answer
    x = 322,207.45

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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.