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Finding the Fourth Proportional to 504,432.07, 696,123.98 and 274,989.49

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Solution

The fourth proportional to 504,432.07, 696,123.98 and 274,989.49 is: 379,489.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,432.07 : 696,123.98 = 274,989.49 : x
  2. Step 2: Convert to fraction form
    504,432.07/696,123.98 = 274,989.49/x
  3. Step 3: Cross multiply
    504,432.07x = 696,123.98 × 274,989.49
  4. Step 4: Simplify right side
    504,432.07x = 191,426,778,236.97
  5. Step 5: Solve for x
    x = 191,426,778,236.97/504,432.07
  6. Step 6: Final answer
    x = 379,489.71

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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.