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Finding the Fourth Proportional to 598,970.40, 898,455.60 and 199,624.20

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Solution

The fourth proportional to 598,970.40, 898,455.60 and 199,624.20 is: 299,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,970.40 : 898,455.60 = 199,624.20 : x
  2. Step 2: Convert to fraction form
    598,970.40/898,455.60 = 199,624.20/x
  3. Step 3: Cross multiply
    598,970.40x = 898,455.60 × 199,624.20
  4. Step 4: Simplify right side
    598,970.40x = 179,353,480,385.52
  5. Step 5: Solve for x
    x = 179,353,480,385.52/598,970.40
  6. Step 6: Final answer
    x = 299,436.30

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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.