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Finding the Fourth Proportional to 676,195, 933,178.26 and 374,389

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Solution

The fourth proportional to 676,195, 933,178.26 and 374,389 is: 516,672.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,195 : 933,178.26 = 374,389 : x
  2. Step 2: Convert to fraction form
    676,195/933,178.26 = 374,389/x
  3. Step 3: Cross multiply
    676,195x = 933,178.26 × 374,389
  4. Step 4: Simplify right side
    676,195x = 349,371,675,583.14
  5. Step 5: Solve for x
    x = 349,371,675,583.14/676,195
  6. Step 6: Final answer
    x = 516,672.97

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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.