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Finding the Fourth Proportional to 472,156.66, 651,557.22 and 257,292.12

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Solution

The fourth proportional to 472,156.66, 651,557.22 and 257,292.12 is: 355,052.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,156.66 : 651,557.22 = 257,292.12 : x
  2. Step 2: Convert to fraction form
    472,156.66/651,557.22 = 257,292.12/x
  3. Step 3: Cross multiply
    472,156.66x = 651,557.22 × 257,292.12
  4. Step 4: Simplify right side
    472,156.66x = 167,640,538,435.11
  5. Step 5: Solve for x
    x = 167,640,538,435.11/472,156.66
  6. Step 6: Final answer
    x = 355,052.79

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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.