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Finding the Fourth Proportional to 355,033.01, 489,949.45 and 193,892.80

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Solution

The fourth proportional to 355,033.01, 489,949.45 and 193,892.80 is: 267,574.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,033.01 : 489,949.45 = 193,892.80 : x
  2. Step 2: Convert to fraction form
    355,033.01/489,949.45 = 193,892.80/x
  3. Step 3: Cross multiply
    355,033.01x = 489,949.45 × 193,892.80
  4. Step 4: Simplify right side
    355,033.01x = 94,997,670,718.96
  5. Step 5: Solve for x
    x = 94,997,670,718.96/355,033.01
  6. Step 6: Final answer
    x = 267,574.20

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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.