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Finding the Fourth Proportional to 676,286.96, 933,264.60 and 374,474.48

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Solution

The fourth proportional to 676,286.96, 933,264.60 and 374,474.48 is: 516,768.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,286.96 : 933,264.60 = 374,474.48 : x
  2. Step 2: Convert to fraction form
    676,286.96/933,264.60 = 374,474.48/x
  3. Step 3: Cross multiply
    676,286.96x = 933,264.60 × 374,474.48
  4. Step 4: Simplify right side
    676,286.96x = 349,483,775,787.41
  5. Step 5: Solve for x
    x = 349,483,775,787.41/676,286.96
  6. Step 6: Final answer
    x = 516,768.47

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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.