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Finding the Fourth Proportional to 543,007.50, 814,533.21 and 258,551.70

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Solution

The fourth proportional to 543,007.50, 814,533.21 and 258,551.70 is: 387,838.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,007.50 : 814,533.21 = 258,551.70 : x
  2. Step 2: Convert to fraction form
    543,007.50/814,533.21 = 258,551.70/x
  3. Step 3: Cross multiply
    543,007.50x = 814,533.21 × 258,551.70
  4. Step 4: Simplify right side
    543,007.50x = 210,598,946,151.96
  5. Step 5: Solve for x
    x = 210,598,946,151.96/543,007.50
  6. Step 6: Final answer
    x = 387,838.01

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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.