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Finding the Fourth Proportional to 329,753.50, 455,059.86 and 186,510.46

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Solution

The fourth proportional to 329,753.50, 455,059.86 and 186,510.46 is: 257,384.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,753.50 : 455,059.86 = 186,510.46 : x
  2. Step 2: Convert to fraction form
    329,753.50/455,059.86 = 186,510.46/x
  3. Step 3: Cross multiply
    329,753.50x = 455,059.86 × 186,510.46
  4. Step 4: Simplify right side
    329,753.50x = 84,873,423,816.14
  5. Step 5: Solve for x
    x = 84,873,423,816.14/329,753.50
  6. Step 6: Final answer
    x = 257,384.45

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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.