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Finding the Fourth Proportional to 625,777.04, 863,518.92 and 353,831.60

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Solution

The fourth proportional to 625,777.04, 863,518.92 and 353,831.60 is: 488,257.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,777.04 : 863,518.92 = 353,831.60 : x
  2. Step 2: Convert to fraction form
    625,777.04/863,518.92 = 353,831.60/x
  3. Step 3: Cross multiply
    625,777.04x = 863,518.92 × 353,831.60
  4. Step 4: Simplify right side
    625,777.04x = 305,540,281,093.87
  5. Step 5: Solve for x
    x = 305,540,281,093.87/625,777.04
  6. Step 6: Final answer
    x = 488,257.42

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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.