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Finding the Fourth Proportional to 484,851.62, 726,285.96 and 395,213.78

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Solution

The fourth proportional to 484,851.62, 726,285.96 and 395,213.78 is: 592,012.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,851.62 : 726,285.96 = 395,213.78 : x
  2. Step 2: Convert to fraction form
    484,851.62/726,285.96 = 395,213.78/x
  3. Step 3: Cross multiply
    484,851.62x = 726,285.96 × 395,213.78
  4. Step 4: Simplify right side
    484,851.62x = 287,038,219,612.53
  5. Step 5: Solve for x
    x = 287,038,219,612.53/484,851.62
  6. Step 6: Final answer
    x = 592,012.50

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1.5x scale

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.