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Finding the Fourth Proportional to 359,391.70, 539,087.55 and 264,913.30

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Solution

The fourth proportional to 359,391.70, 539,087.55 and 264,913.30 is: 397,369.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,391.70 : 539,087.55 = 264,913.30 : x
  2. Step 2: Convert to fraction form
    359,391.70/539,087.55 = 264,913.30/x
  3. Step 3: Cross multiply
    359,391.70x = 539,087.55 × 264,913.30
  4. Step 4: Simplify right side
    359,391.70x = 142,811,461,859.42
  5. Step 5: Solve for x
    x = 142,811,461,859.42/359,391.70
  6. Step 6: Final answer
    x = 397,369.95

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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.