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Finding the Fourth Proportional to 359,378.60, 538,031.10 and 349,010.60

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Solution

The fourth proportional to 359,378.60, 538,031.10 and 349,010.60 is: 522,509.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,378.60 : 538,031.10 = 349,010.60 : x
  2. Step 2: Convert to fraction form
    359,378.60/538,031.10 = 349,010.60/x
  3. Step 3: Cross multiply
    359,378.60x = 538,031.10 × 349,010.60
  4. Step 4: Simplify right side
    359,378.60x = 187,778,557,029.66
  5. Step 5: Solve for x
    x = 187,778,557,029.66/359,378.60
  6. Step 6: Final answer
    x = 522,509.01

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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.