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Finding the Fourth Proportional to 329,769, 455,081.24 and 186,525.96

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Solution

The fourth proportional to 329,769, 455,081.24 and 186,525.96 is: 257,405.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,769 : 455,081.24 = 186,525.96 : x
  2. Step 2: Convert to fraction form
    329,769/455,081.24 = 186,525.96/x
  3. Step 3: Cross multiply
    329,769x = 455,081.24 × 186,525.96
  4. Step 4: Simplify right side
    329,769x = 84,884,465,168.99
  5. Step 5: Solve for x
    x = 84,884,465,168.99/329,769
  6. Step 6: Final answer
    x = 257,405.84

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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.