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Finding the Fourth Proportional to 558,714.50, 770,891.54 and 329,280.92

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Solution

The fourth proportional to 558,714.50, 770,891.54 and 329,280.92 is: 454,328.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,714.50 : 770,891.54 = 329,280.92 : x
  2. Step 2: Convert to fraction form
    558,714.50/770,891.54 = 329,280.92/x
  3. Step 3: Cross multiply
    558,714.50x = 770,891.54 × 329,280.92
  4. Step 4: Simplify right side
    558,714.50x = 253,839,875,511.42
  5. Step 5: Solve for x
    x = 253,839,875,511.42/558,714.50
  6. Step 6: Final answer
    x = 454,328.42

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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.