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Finding the Fourth Proportional to 329,807.23, 455,134.13 and 186,564.22

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Solution

The fourth proportional to 329,807.23, 455,134.13 and 186,564.22 is: 257,458.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,807.23 : 455,134.13 = 186,564.22 : x
  2. Step 2: Convert to fraction form
    329,807.23/455,134.13 = 186,564.22/x
  3. Step 3: Cross multiply
    329,807.23x = 455,134.13 × 186,564.22
  4. Step 4: Simplify right side
    329,807.23x = 84,911,743,026.01
  5. Step 5: Solve for x
    x = 84,911,743,026.01/329,807.23
  6. Step 6: Final answer
    x = 257,458.71

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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.