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Finding the Fourth Proportional to 713,007.20, 1,068,020.40 and 334,251.20

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Solution

The fourth proportional to 713,007.20, 1,068,020.40 and 334,251.20 is: 500,678.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,007.20 : 1,068,020.40 = 334,251.20 : x
  2. Step 2: Convert to fraction form
    713,007.20/1,068,020.40 = 334,251.20/x
  3. Step 3: Cross multiply
    713,007.20x = 1,068,020.40 × 334,251.20
  4. Step 4: Simplify right side
    713,007.20x = 356,987,100,324.48
  5. Step 5: Solve for x
    x = 356,987,100,324.48/713,007.20
  6. Step 6: Final answer
    x = 500,678.11

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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.