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Finding the Fourth Proportional to 358,758.48, 494,988.21 and 249,740.67

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Solution

The fourth proportional to 358,758.48, 494,988.21 and 249,740.67 is: 344,573.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,758.48 : 494,988.21 = 249,740.67 : x
  2. Step 2: Convert to fraction form
    358,758.48/494,988.21 = 249,740.67/x
  3. Step 3: Cross multiply
    358,758.48x = 494,988.21 × 249,740.67
  4. Step 4: Simplify right side
    358,758.48x = 123,618,687,207.50
  5. Step 5: Solve for x
    x = 123,618,687,207.50/358,758.48
  6. Step 6: Final answer
    x = 344,573.56

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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.