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Finding the Fourth Proportional to 376,699.74, 519,982.11 and 249,416.34

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Solution

The fourth proportional to 376,699.74, 519,982.11 and 249,416.34 is: 344,284.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,699.74 : 519,982.11 = 249,416.34 : x
  2. Step 2: Convert to fraction form
    376,699.74/519,982.11 = 249,416.34/x
  3. Step 3: Cross multiply
    376,699.74x = 519,982.11 × 249,416.34
  4. Step 4: Simplify right side
    376,699.74x = 129,692,034,741.68
  5. Step 5: Solve for x
    x = 129,692,034,741.68/376,699.74
  6. Step 6: Final answer
    x = 344,284.91

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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.