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Finding the Fourth Proportional to 619,382.80, 928,843.80 and 245,328.40

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Solution

The fourth proportional to 619,382.80, 928,843.80 and 245,328.40 is: 367,901.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,382.80 : 928,843.80 = 245,328.40 : x
  2. Step 2: Convert to fraction form
    619,382.80/928,843.80 = 245,328.40/x
  3. Step 3: Cross multiply
    619,382.80x = 928,843.80 × 245,328.40
  4. Step 4: Simplify right side
    619,382.80x = 227,871,763,303.92
  5. Step 5: Solve for x
    x = 227,871,763,303.92/619,382.80
  6. Step 6: Final answer
    x = 367,901.34

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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.