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Finding the Fourth Proportional to 382,218.80, 573,328.20 and 358,599.20

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Solution

The fourth proportional to 382,218.80, 573,328.20 and 358,599.20 is: 537,898.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,218.80 : 573,328.20 = 358,599.20 : x
  2. Step 2: Convert to fraction form
    382,218.80/573,328.20 = 358,599.20/x
  3. Step 3: Cross multiply
    382,218.80x = 573,328.20 × 358,599.20
  4. Step 4: Simplify right side
    382,218.80x = 205,595,033,857.44
  5. Step 5: Solve for x
    x = 205,595,033,857.44/382,218.80
  6. Step 6: Final answer
    x = 537,898.80

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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.