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Finding the Fourth Proportional to 472,170.08, 651,578.16 and 257,305.76

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Solution

The fourth proportional to 472,170.08, 651,578.16 and 257,305.76 is: 355,072.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,170.08 : 651,578.16 = 257,305.76 : x
  2. Step 2: Convert to fraction form
    472,170.08/651,578.16 = 257,305.76/x
  3. Step 3: Cross multiply
    472,170.08x = 651,578.16 × 257,305.76
  4. Step 4: Simplify right side
    472,170.08x = 167,654,813,658.20
  5. Step 5: Solve for x
    x = 167,654,813,658.20/472,170.08
  6. Step 6: Final answer
    x = 355,072.93

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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.