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Finding the Fourth Proportional to 279,051.48, 384,955.74 and 165,794.04

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Solution

The fourth proportional to 279,051.48, 384,955.74 and 165,794.04 is: 228,715.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,051.48 : 384,955.74 = 165,794.04 : x
  2. Step 2: Convert to fraction form
    279,051.48/384,955.74 = 165,794.04/x
  3. Step 3: Cross multiply
    279,051.48x = 384,955.74 × 165,794.04
  4. Step 4: Simplify right side
    279,051.48x = 63,823,367,355.79
  5. Step 5: Solve for x
    x = 63,823,367,355.79/279,051.48
  6. Step 6: Final answer
    x = 228,715.39

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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.