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Finding the Fourth Proportional to 354,953.03, 489,831.45 and 193,807.58

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Solution

The fourth proportional to 354,953.03, 489,831.45 and 193,807.58 is: 267,452.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,953.03 : 489,831.45 = 193,807.58 : x
  2. Step 2: Convert to fraction form
    354,953.03/489,831.45 = 193,807.58/x
  3. Step 3: Cross multiply
    354,953.03x = 489,831.45 × 193,807.58
  4. Step 4: Simplify right side
    354,953.03x = 94,933,047,932.39
  5. Step 5: Solve for x
    x = 94,933,047,932.39/354,953.03
  6. Step 6: Final answer
    x = 267,452.42

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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.