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Finding the Fourth Proportional to 373,748.32, 515,610.88 and 228,560.46

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Solution

The fourth proportional to 373,748.32, 515,610.88 and 228,560.46 is: 315,314.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,748.32 : 515,610.88 = 228,560.46 : x
  2. Step 2: Convert to fraction form
    373,748.32/515,610.88 = 228,560.46/x
  3. Step 3: Cross multiply
    373,748.32x = 515,610.88 × 228,560.46
  4. Step 4: Simplify right side
    373,748.32x = 117,848,259,913.81
  5. Step 5: Solve for x
    x = 117,848,259,913.81/373,748.32
  6. Step 6: Final answer
    x = 315,314.49

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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.