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Finding the Fourth Proportional to 458,648.55, 633,234.77 and 297,961.56

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Solution

The fourth proportional to 458,648.55, 633,234.77 and 297,961.56 is: 411,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,648.55 : 633,234.77 = 297,961.56 : x
  2. Step 2: Convert to fraction form
    458,648.55/633,234.77 = 297,961.56/x
  3. Step 3: Cross multiply
    458,648.55x = 633,234.77 × 297,961.56
  4. Step 4: Simplify right side
    458,648.55x = 188,679,618,425.63
  5. Step 5: Solve for x
    x = 188,679,618,425.63/458,648.55
  6. Step 6: Final answer
    x = 411,381.70

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1.5x scale

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.