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Finding the Fourth Proportional to 567,409.20, 851,056.20 and 193,426.80

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Solution

The fourth proportional to 567,409.20, 851,056.20 and 193,426.80 is: 290,120.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,409.20 : 851,056.20 = 193,426.80 : x
  2. Step 2: Convert to fraction form
    567,409.20/851,056.20 = 193,426.80/x
  3. Step 3: Cross multiply
    567,409.20x = 851,056.20 × 193,426.80
  4. Step 4: Simplify right side
    567,409.20x = 164,617,077,386.16
  5. Step 5: Solve for x
    x = 164,617,077,386.16/567,409.20
  6. Step 6: Final answer
    x = 290,120.56

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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.