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Finding the Fourth Proportional to 611,572.80, 917,359.20 and 598,450.80

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Solution

The fourth proportional to 611,572.80, 917,359.20 and 598,450.80 is: 897,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,572.80 : 917,359.20 = 598,450.80 : x
  2. Step 2: Convert to fraction form
    611,572.80/917,359.20 = 598,450.80/x
  3. Step 3: Cross multiply
    611,572.80x = 917,359.20 × 598,450.80
  4. Step 4: Simplify right side
    611,572.80x = 548,994,347,127.36
  5. Step 5: Solve for x
    x = 548,994,347,127.36/611,572.80
  6. Step 6: Final answer
    x = 897,676.20

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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.