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Finding the Fourth Proportional to 622,843.20, 934,264.80 and 482,875.20

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Solution

The fourth proportional to 622,843.20, 934,264.80 and 482,875.20 is: 724,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,843.20 : 934,264.80 = 482,875.20 : x
  2. Step 2: Convert to fraction form
    622,843.20/934,264.80 = 482,875.20/x
  3. Step 3: Cross multiply
    622,843.20x = 934,264.80 × 482,875.20
  4. Step 4: Simplify right side
    622,843.20x = 451,133,302,152.96
  5. Step 5: Solve for x
    x = 451,133,302,152.96/622,843.20
  6. Step 6: Final answer
    x = 724,312.80

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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.