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Finding the Fourth Proportional to 389,830.70, 537,818.16 and 244,574.94

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Solution

The fourth proportional to 389,830.70, 537,818.16 and 244,574.94 is: 337,420.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,830.70 : 537,818.16 = 244,574.94 : x
  2. Step 2: Convert to fraction form
    389,830.70/537,818.16 = 244,574.94/x
  3. Step 3: Cross multiply
    389,830.70x = 537,818.16 × 244,574.94
  4. Step 4: Simplify right side
    389,830.70x = 131,536,845,083.28
  5. Step 5: Solve for x
    x = 131,536,845,083.28/389,830.70
  6. Step 6: Final answer
    x = 337,420.44

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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.