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Finding the Fourth Proportional to 676,178.64, 933,189.12 and 374,372.64

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Solution

The fourth proportional to 676,178.64, 933,189.12 and 374,372.64 is: 516,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,178.64 : 933,189.12 = 374,372.64 : x
  2. Step 2: Convert to fraction form
    676,178.64/933,189.12 = 374,372.64/x
  3. Step 3: Cross multiply
    676,178.64x = 933,189.12 × 374,372.64
  4. Step 4: Simplify right side
    676,178.64x = 349,360,474,473.68
  5. Step 5: Solve for x
    x = 349,360,474,473.68/676,178.64
  6. Step 6: Final answer
    x = 516,668.90

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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.