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Finding the Fourth Proportional to 385,755.63, 532,219.74 and 249,893.72

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Solution

The fourth proportional to 385,755.63, 532,219.74 and 249,893.72 is: 344,773.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,755.63 : 532,219.74 = 249,893.72 : x
  2. Step 2: Convert to fraction form
    385,755.63/532,219.74 = 249,893.72/x
  3. Step 3: Cross multiply
    385,755.63x = 532,219.74 × 249,893.72
  4. Step 4: Simplify right side
    385,755.63x = 132,998,370,686.03
  5. Step 5: Solve for x
    x = 132,998,370,686.03/385,755.63
  6. Step 6: Final answer
    x = 344,773.63

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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.