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Finding the Fourth Proportional to 577,984.80, 867,128.40 and 223,010.40

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Solution

The fourth proportional to 577,984.80, 867,128.40 and 223,010.40 is: 334,573.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,984.80 : 867,128.40 = 223,010.40 : x
  2. Step 2: Convert to fraction form
    577,984.80/867,128.40 = 223,010.40/x
  3. Step 3: Cross multiply
    577,984.80x = 867,128.40 × 223,010.40
  4. Step 4: Simplify right side
    577,984.80x = 193,378,651,335.36
  5. Step 5: Solve for x
    x = 193,378,651,335.36/577,984.80
  6. Step 6: Final answer
    x = 334,573.94

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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.