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Finding the Fourth Proportional to 355,266.40, 532,899.60 and 353,192.80

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Solution

The fourth proportional to 355,266.40, 532,899.60 and 353,192.80 is: 529,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,266.40 : 532,899.60 = 353,192.80 : x
  2. Step 2: Convert to fraction form
    355,266.40/532,899.60 = 353,192.80/x
  3. Step 3: Cross multiply
    355,266.40x = 532,899.60 × 353,192.80
  4. Step 4: Simplify right side
    355,266.40x = 188,216,301,842.88
  5. Step 5: Solve for x
    x = 188,216,301,842.88/355,266.40
  6. Step 6: Final answer
    x = 529,789.20

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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.