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Finding the Fourth Proportional to 359,252.80, 538,879.20 and 353,108.80

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Solution

The fourth proportional to 359,252.80, 538,879.20 and 353,108.80 is: 529,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,252.80 : 538,879.20 = 353,108.80 : x
  2. Step 2: Convert to fraction form
    359,252.80/538,879.20 = 353,108.80/x
  3. Step 3: Cross multiply
    359,252.80x = 538,879.20 × 353,108.80
  4. Step 4: Simplify right side
    359,252.80x = 190,282,987,656.96
  5. Step 5: Solve for x
    x = 190,282,987,656.96/359,252.80
  6. Step 6: Final answer
    x = 529,663.20

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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.