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Finding the Fourth Proportional to 472,264.62, 651,725.67 and 257,404.86

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Solution

The fourth proportional to 472,264.62, 651,725.67 and 257,404.86 is: 355,218.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,264.62 : 651,725.67 = 257,404.86 : x
  2. Step 2: Convert to fraction form
    472,264.62/651,725.67 = 257,404.86/x
  3. Step 3: Cross multiply
    472,264.62x = 651,725.67 × 257,404.86
  4. Step 4: Simplify right side
    472,264.62x = 167,757,354,844.76
  5. Step 5: Solve for x
    x = 167,757,354,844.76/472,264.62
  6. Step 6: Final answer
    x = 355,218.98

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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.