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Finding the Fourth Proportional to 366,913.45, 550,370.18 and 314,425.45

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Solution

The fourth proportional to 366,913.45, 550,370.18 and 314,425.45 is: 471,638.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,913.45 : 550,370.18 = 314,425.45 : x
  2. Step 2: Convert to fraction form
    366,913.45/550,370.18 = 314,425.45/x
  3. Step 3: Cross multiply
    366,913.45x = 550,370.18 × 314,425.45
  4. Step 4: Simplify right side
    366,913.45x = 173,050,391,513.08
  5. Step 5: Solve for x
    x = 173,050,391,513.08/366,913.45
  6. Step 6: Final answer
    x = 471,638.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.