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Finding the Fourth Proportional to 578,772.64, 868,343.28 and 246,443.68

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Solution

The fourth proportional to 578,772.64, 868,343.28 and 246,443.68 is: 369,744.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,772.64 : 868,343.28 = 246,443.68 : x
  2. Step 2: Convert to fraction form
    578,772.64/868,343.28 = 246,443.68/x
  3. Step 3: Cross multiply
    578,772.64x = 868,343.28 × 246,443.68
  4. Step 4: Simplify right side
    578,772.64x = 213,997,713,426.47
  5. Step 5: Solve for x
    x = 213,997,713,426.47/578,772.64
  6. Step 6: Final answer
    x = 369,744.00

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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.