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Finding the Fourth Proportional to 303,348.90, 455,898.15 and 264,857.70

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Solution

The fourth proportional to 303,348.90, 455,898.15 and 264,857.70 is: 398,050.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,348.90 : 455,898.15 = 264,857.70 : x
  2. Step 2: Convert to fraction form
    303,348.90/455,898.15 = 264,857.70/x
  3. Step 3: Cross multiply
    303,348.90x = 455,898.15 × 264,857.70
  4. Step 4: Simplify right side
    303,348.90x = 120,748,135,443.26
  5. Step 5: Solve for x
    x = 120,748,135,443.26/303,348.90
  6. Step 6: Final answer
    x = 398,050.35

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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.