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Finding the Fourth Proportional to 329,736.88, 455,018.88 and 186,525.64

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Solution

The fourth proportional to 329,736.88, 455,018.88 and 186,525.64 is: 257,395.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,736.88 : 455,018.88 = 186,525.64 : x
  2. Step 2: Convert to fraction form
    329,736.88/455,018.88 = 186,525.64/x
  3. Step 3: Cross multiply
    329,736.88x = 455,018.88 × 186,525.64
  4. Step 4: Simplify right side
    329,736.88x = 84,872,687,804.08
  5. Step 5: Solve for x
    x = 84,872,687,804.08/329,736.88
  6. Step 6: Final answer
    x = 257,395.19

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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.