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Finding the Fourth Proportional to 611,999.20, 917,998.80 and 599,557.60

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Solution

The fourth proportional to 611,999.20, 917,998.80 and 599,557.60 is: 899,336.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,999.20 : 917,998.80 = 599,557.60 : x
  2. Step 2: Convert to fraction form
    611,999.20/917,998.80 = 599,557.60/x
  3. Step 3: Cross multiply
    611,999.20x = 917,998.80 × 599,557.60
  4. Step 4: Simplify right side
    611,999.20x = 550,393,157,330.88
  5. Step 5: Solve for x
    x = 550,393,157,330.88/611,999.20
  6. Step 6: Final answer
    x = 899,336.40

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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.