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Finding the Fourth Proportional to 575,783.52, 863,785.98 and 220,769.84

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Solution

The fourth proportional to 575,783.52, 863,785.98 and 220,769.84 is: 331,197.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,783.52 : 863,785.98 = 220,769.84 : x
  2. Step 2: Convert to fraction form
    575,783.52/863,785.98 = 220,769.84/x
  3. Step 3: Cross multiply
    575,783.52x = 863,785.98 × 220,769.84
  4. Step 4: Simplify right side
    575,783.52x = 190,697,892,598.84
  5. Step 5: Solve for x
    x = 190,697,892,598.84/575,783.52
  6. Step 6: Final answer
    x = 331,197.21

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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.