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Finding the Fourth Proportional to 329,876.08, 455,229 and 186,633.04

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Solution

The fourth proportional to 329,876.08, 455,229 and 186,633.04 is: 257,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,876.08 : 455,229 = 186,633.04 : x
  2. Step 2: Convert to fraction form
    329,876.08/455,229 = 186,633.04/x
  3. Step 3: Cross multiply
    329,876.08x = 455,229 × 186,633.04
  4. Step 4: Simplify right side
    329,876.08x = 84,960,772,166.16
  5. Step 5: Solve for x
    x = 84,960,772,166.16/329,876.08
  6. Step 6: Final answer
    x = 257,553.60

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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.