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Finding the Fourth Proportional to 506,893.95, 699,511.81 and 274,320.41

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Solution

The fourth proportional to 506,893.95, 699,511.81 and 274,320.41 is: 378,561.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,893.95 : 699,511.81 = 274,320.41 : x
  2. Step 2: Convert to fraction form
    506,893.95/699,511.81 = 274,320.41/x
  3. Step 3: Cross multiply
    506,893.95x = 699,511.81 × 274,320.41
  4. Step 4: Simplify right side
    506,893.95x = 191,890,367,582.02
  5. Step 5: Solve for x
    x = 191,890,367,582.02/506,893.95
  6. Step 6: Final answer
    x = 378,561.17

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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.