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Finding the Fourth Proportional to 598,911.80, 898,367.70 and 398,582.60

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Solution

The fourth proportional to 598,911.80, 898,367.70 and 398,582.60 is: 597,873.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,911.80 : 898,367.70 = 398,582.60 : x
  2. Step 2: Convert to fraction form
    598,911.80/898,367.70 = 398,582.60/x
  3. Step 3: Cross multiply
    598,911.80x = 898,367.70 × 398,582.60
  4. Step 4: Simplify right side
    598,911.80x = 358,073,733,622.02
  5. Step 5: Solve for x
    x = 358,073,733,622.02/598,911.80
  6. Step 6: Final answer
    x = 597,873.90

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Similar ratio
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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.