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Finding the Fourth Proportional to 598,889.20, 898,333.80 and 555,586.60

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Solution

The fourth proportional to 598,889.20, 898,333.80 and 555,586.60 is: 833,379.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,889.20 : 898,333.80 = 555,586.60 : x
  2. Step 2: Convert to fraction form
    598,889.20/898,333.80 = 555,586.60/x
  3. Step 3: Cross multiply
    598,889.20x = 898,333.80 × 555,586.60
  4. Step 4: Simplify right side
    598,889.20x = 499,102,221,607.08
  5. Step 5: Solve for x
    x = 499,102,221,607.08/598,889.20
  6. Step 6: Final answer
    x = 833,379.90

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Double scale
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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.