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Finding the Fourth Proportional to 582,228.14, 874,006.50 and 390,245.10

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Solution

The fourth proportional to 582,228.14, 874,006.50 and 390,245.10 is: 585,812.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,228.14 : 874,006.50 = 390,245.10 : x
  2. Step 2: Convert to fraction form
    582,228.14/874,006.50 = 390,245.10/x
  3. Step 3: Cross multiply
    582,228.14x = 874,006.50 × 390,245.10
  4. Step 4: Simplify right side
    582,228.14x = 341,076,753,993.15
  5. Step 5: Solve for x
    x = 341,076,753,993.15/582,228.14
  6. Step 6: Final answer
    x = 585,812.90

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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.