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Finding the Fourth Proportional to 559,489.20, 839,481.84 and 293,186.40

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Solution

The fourth proportional to 559,489.20, 839,481.84 and 293,186.40 is: 439,909.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,489.20 : 839,481.84 = 293,186.40 : x
  2. Step 2: Convert to fraction form
    559,489.20/839,481.84 = 293,186.40/x
  3. Step 3: Cross multiply
    559,489.20x = 839,481.84 × 293,186.40
  4. Step 4: Simplify right side
    559,489.20x = 246,124,658,534.98
  5. Step 5: Solve for x
    x = 246,124,658,534.98/559,489.20
  6. Step 6: Final answer
    x = 439,909.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.