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Finding the Fourth Proportional to 676,186.75, 933,166.88 and 374,380.75

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Solution

The fourth proportional to 676,186.75, 933,166.88 and 374,380.75 is: 516,661.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,186.75 : 933,166.88 = 374,380.75 : x
  2. Step 2: Convert to fraction form
    676,186.75/933,166.88 = 374,380.75/x
  3. Step 3: Cross multiply
    676,186.75x = 933,166.88 × 374,380.75
  4. Step 4: Simplify right side
    676,186.75x = 349,359,716,409.56
  5. Step 5: Solve for x
    x = 349,359,716,409.56/676,186.75
  6. Step 6: Final answer
    x = 516,661.58

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Half scale
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Double scale
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Similar ratio
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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.