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Finding the Fourth Proportional to 438,937.66, 658,358.64 and 297,690.27

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Solution

The fourth proportional to 438,937.66, 658,358.64 and 297,690.27 is: 446,502.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,937.66 : 658,358.64 = 297,690.27 : x
  2. Step 2: Convert to fraction form
    438,937.66/658,358.64 = 297,690.27/x
  3. Step 3: Cross multiply
    438,937.66x = 658,358.64 × 297,690.27
  4. Step 4: Simplify right side
    438,937.66x = 195,986,961,298.43
  5. Step 5: Solve for x
    x = 195,986,961,298.43/438,937.66
  6. Step 6: Final answer
    x = 446,502.95

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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.