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Finding the Fourth Proportional to 461,557.77, 636,981.75 and 257,648.78

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Solution

The fourth proportional to 461,557.77, 636,981.75 and 257,648.78 is: 355,573.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,557.77 : 636,981.75 = 257,648.78 : x
  2. Step 2: Convert to fraction form
    461,557.77/636,981.75 = 257,648.78/x
  3. Step 3: Cross multiply
    461,557.77x = 636,981.75 × 257,648.78
  4. Step 4: Simplify right side
    461,557.77x = 164,117,567,584.86
  5. Step 5: Solve for x
    x = 164,117,567,584.86/461,557.77
  6. Step 6: Final answer
    x = 355,573.19

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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.