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Finding the Fourth Proportional to 277,081.34, 382,364.60 and 156,221.57

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Solution

The fourth proportional to 277,081.34, 382,364.60 and 156,221.57 is: 215,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,081.34 : 382,364.60 = 156,221.57 : x
  2. Step 2: Convert to fraction form
    277,081.34/382,364.60 = 156,221.57/x
  3. Step 3: Cross multiply
    277,081.34x = 382,364.60 × 156,221.57
  4. Step 4: Simplify right side
    277,081.34x = 59,733,595,431.49
  5. Step 5: Solve for x
    x = 59,733,595,431.49/277,081.34
  6. Step 6: Final answer
    x = 215,581.45

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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.