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Finding the Fourth Proportional to 359,271.70, 538,907.55 and 326,029.30

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Solution

The fourth proportional to 359,271.70, 538,907.55 and 326,029.30 is: 489,043.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,271.70 : 538,907.55 = 326,029.30 : x
  2. Step 2: Convert to fraction form
    359,271.70/538,907.55 = 326,029.30/x
  3. Step 3: Cross multiply
    359,271.70x = 538,907.55 × 326,029.30
  4. Step 4: Simplify right side
    359,271.70x = 175,699,651,291.22
  5. Step 5: Solve for x
    x = 175,699,651,291.22/359,271.70
  6. Step 6: Final answer
    x = 489,043.95

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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.