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Finding the Fourth Proportional to 529,865.40, 794,798.10 and 361,903.80

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Solution

The fourth proportional to 529,865.40, 794,798.10 and 361,903.80 is: 542,855.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,865.40 : 794,798.10 = 361,903.80 : x
  2. Step 2: Convert to fraction form
    529,865.40/794,798.10 = 361,903.80/x
  3. Step 3: Cross multiply
    529,865.40x = 794,798.10 × 361,903.80
  4. Step 4: Simplify right side
    529,865.40x = 287,640,452,622.78
  5. Step 5: Solve for x
    x = 287,640,452,622.78/529,865.40
  6. Step 6: Final answer
    x = 542,855.70

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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.