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Finding the Fourth Proportional to 605,280.71, 835,270.31 and 347,200.74

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Solution

The fourth proportional to 605,280.71, 835,270.31 and 347,200.74 is: 479,127.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,280.71 : 835,270.31 = 347,200.74 : x
  2. Step 2: Convert to fraction form
    605,280.71/835,270.31 = 347,200.74/x
  3. Step 3: Cross multiply
    605,280.71x = 835,270.31 × 347,200.74
  4. Step 4: Simplify right side
    605,280.71x = 290,006,470,600.03
  5. Step 5: Solve for x
    x = 290,006,470,600.03/605,280.71
  6. Step 6: Final answer
    x = 479,127.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.