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Finding the Fourth Proportional to 368,748.45, 508,882.43 and 207,609.31

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Solution

The fourth proportional to 368,748.45, 508,882.43 and 207,609.31 is: 286,506.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,748.45 : 508,882.43 = 207,609.31 : x
  2. Step 2: Convert to fraction form
    368,748.45/508,882.43 = 207,609.31/x
  3. Step 3: Cross multiply
    368,748.45x = 508,882.43 × 207,609.31
  4. Step 4: Simplify right side
    368,748.45x = 105,648,731,318.55
  5. Step 5: Solve for x
    x = 105,648,731,318.55/368,748.45
  6. Step 6: Final answer
    x = 286,506.24

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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.