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Finding the Fourth Proportional to 359,389.70, 539,084.55 and 264,911.30

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Solution

The fourth proportional to 359,389.70, 539,084.55 and 264,911.30 is: 397,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,389.70 : 539,084.55 = 264,911.30 : x
  2. Step 2: Convert to fraction form
    359,389.70/539,084.55 = 264,911.30/x
  3. Step 3: Cross multiply
    359,389.70x = 539,084.55 × 264,911.30
  4. Step 4: Simplify right side
    359,389.70x = 142,809,588,950.42
  5. Step 5: Solve for x
    x = 142,809,588,950.42/359,389.70
  6. Step 6: Final answer
    x = 397,366.95

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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.