Home / 461,261.77-636,542.27-257,307.61

Finding the Fourth Proportional to 461,261.77, 636,542.27 and 257,307.61

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Solution

The fourth proportional to 461,261.77, 636,542.27 and 257,307.61 is: 355,085.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,261.77 : 636,542.27 = 257,307.61 : x
  2. Step 2: Convert to fraction form
    461,261.77/636,542.27 = 257,307.61/x
  3. Step 3: Cross multiply
    461,261.77x = 636,542.27 × 257,307.61
  4. Step 4: Simplify right side
    461,261.77x = 163,787,170,157.68
  5. Step 5: Solve for x
    x = 163,787,170,157.68/461,261.77
  6. Step 6: Final answer
    x = 355,085.07

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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.