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Finding the Fourth Proportional to 329,967.77, 455,355.54 and 179,064.77

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Solution

The fourth proportional to 329,967.77, 455,355.54 and 179,064.77 is: 247,109.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,967.77 : 455,355.54 = 179,064.77 : x
  2. Step 2: Convert to fraction form
    329,967.77/455,355.54 = 179,064.77/x
  3. Step 3: Cross multiply
    329,967.77x = 455,355.54 × 179,064.77
  4. Step 4: Simplify right side
    329,967.77x = 81,538,132,761.55
  5. Step 5: Solve for x
    x = 81,538,132,761.55/329,967.77
  6. Step 6: Final answer
    x = 247,109.39

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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.