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Finding the Fourth Proportional to 567,530.40, 850,129.20 and 287,205.60

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Solution

The fourth proportional to 567,530.40, 850,129.20 and 287,205.60 is: 430,218.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,530.40 : 850,129.20 = 287,205.60 : x
  2. Step 2: Convert to fraction form
    567,530.40/850,129.20 = 287,205.60/x
  3. Step 3: Cross multiply
    567,530.40x = 850,129.20 × 287,205.60
  4. Step 4: Simplify right side
    567,530.40x = 244,161,866,963.52
  5. Step 5: Solve for x
    x = 244,161,866,963.52/567,530.40
  6. Step 6: Final answer
    x = 430,218.13

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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.