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Finding the Fourth Proportional to 329,809.98, 455,137.92 and 186,566.97

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Solution

The fourth proportional to 329,809.98, 455,137.92 and 186,566.97 is: 257,462.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,809.98 : 455,137.92 = 186,566.97 : x
  2. Step 2: Convert to fraction form
    329,809.98/455,137.92 = 186,566.97/x
  3. Step 3: Cross multiply
    329,809.98x = 455,137.92 × 186,566.97
  4. Step 4: Simplify right side
    329,809.98x = 84,913,702,666.50
  5. Step 5: Solve for x
    x = 84,913,702,666.50/329,809.98
  6. Step 6: Final answer
    x = 257,462.50

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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.