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Finding the Fourth Proportional to 352,001.90, 528,780.45 and 338,782.70

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Solution

The fourth proportional to 352,001.90, 528,780.45 and 338,782.70 is: 508,922.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,001.90 : 528,780.45 = 338,782.70 : x
  2. Step 2: Convert to fraction form
    352,001.90/528,780.45 = 338,782.70/x
  3. Step 3: Cross multiply
    352,001.90x = 528,780.45 × 338,782.70
  4. Step 4: Simplify right side
    352,001.90x = 179,141,668,558.22
  5. Step 5: Solve for x
    x = 179,141,668,558.22/352,001.90
  6. Step 6: Final answer
    x = 508,922.45

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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.