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Finding the Fourth Proportional to 329,814, 455,143.56 and 178,911.60

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Solution

The fourth proportional to 329,814, 455,143.56 and 178,911.60 is: 246,898.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,814 : 455,143.56 = 178,911.60 : x
  2. Step 2: Convert to fraction form
    329,814/455,143.56 = 178,911.60/x
  3. Step 3: Cross multiply
    329,814x = 455,143.56 × 178,911.60
  4. Step 4: Simplify right side
    329,814x = 81,430,462,549.30
  5. Step 5: Solve for x
    x = 81,430,462,549.30/329,814
  6. Step 6: Final answer
    x = 246,898.14

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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.