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Finding the Fourth Proportional to 559,970.20, 839,955.30 and 382,823.20

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Solution

The fourth proportional to 559,970.20, 839,955.30 and 382,823.20 is: 574,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,970.20 : 839,955.30 = 382,823.20 : x
  2. Step 2: Convert to fraction form
    559,970.20/839,955.30 = 382,823.20/x
  3. Step 3: Cross multiply
    559,970.20x = 839,955.30 × 382,823.20
  4. Step 4: Simplify right side
    559,970.20x = 321,554,375,802.96
  5. Step 5: Solve for x
    x = 321,554,375,802.96/559,970.20
  6. Step 6: Final answer
    x = 574,234.80

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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.