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Finding the Fourth Proportional to 569,999.20, 854,566.80 and 289,717.60

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Solution

The fourth proportional to 569,999.20, 854,566.80 and 289,717.60 is: 434,356.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,999.20 : 854,566.80 = 289,717.60 : x
  2. Step 2: Convert to fraction form
    569,999.20/854,566.80 = 289,717.60/x
  3. Step 3: Cross multiply
    569,999.20x = 854,566.80 × 289,717.60
  4. Step 4: Simplify right side
    569,999.20x = 247,583,042,335.68
  5. Step 5: Solve for x
    x = 247,583,042,335.68/569,999.20
  6. Step 6: Final answer
    x = 434,356.82

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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.