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Finding the Fourth Proportional to 558,874.40, 771,265.44 and 317,168.16

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Solution

The fourth proportional to 558,874.40, 771,265.44 and 317,168.16 is: 437,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,874.40 : 771,265.44 = 317,168.16 : x
  2. Step 2: Convert to fraction form
    558,874.40/771,265.44 = 317,168.16/x
  3. Step 3: Cross multiply
    558,874.40x = 771,265.44 × 317,168.16
  4. Step 4: Simplify right side
    558,874.40x = 244,620,840,476.39
  5. Step 5: Solve for x
    x = 244,620,840,476.39/558,874.40
  6. Step 6: Final answer
    x = 437,702.71

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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.