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Finding the Fourth Proportional to 373,755, 515,796.12 and 212,624.76

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Solution

The fourth proportional to 373,755, 515,796.12 and 212,624.76 is: 293,430.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,755 : 515,796.12 = 212,624.76 : x
  2. Step 2: Convert to fraction form
    373,755/515,796.12 = 212,624.76/x
  3. Step 3: Cross multiply
    373,755x = 515,796.12 × 212,624.76
  4. Step 4: Simplify right side
    373,755x = 109,671,026,223.93
  5. Step 5: Solve for x
    x = 109,671,026,223.93/373,755
  6. Step 6: Final answer
    x = 293,430.26

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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.