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Finding the Fourth Proportional to 329,814, 455,179.77 and 186,572.79

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Solution

The fourth proportional to 329,814, 455,179.77 and 186,572.79 is: 257,491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,814 : 455,179.77 = 186,572.79 : x
  2. Step 2: Convert to fraction form
    329,814/455,179.77 = 186,572.79/x
  3. Step 3: Cross multiply
    329,814x = 455,179.77 × 186,572.79
  4. Step 4: Simplify right side
    329,814x = 84,924,159,640.46
  5. Step 5: Solve for x
    x = 84,924,159,640.46/329,814
  6. Step 6: Final answer
    x = 257,491.07

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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.