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Finding the Fourth Proportional to 554,668.33, 830,369.54 and 343,627.69

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Solution

The fourth proportional to 554,668.33, 830,369.54 and 343,627.69 is: 514,429.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,668.33 : 830,369.54 = 343,627.69 : x
  2. Step 2: Convert to fraction form
    554,668.33/830,369.54 = 343,627.69/x
  3. Step 3: Cross multiply
    554,668.33x = 830,369.54 × 343,627.69
  4. Step 4: Simplify right side
    554,668.33x = 285,337,965,158.42
  5. Step 5: Solve for x
    x = 285,337,965,158.42/554,668.33
  6. Step 6: Final answer
    x = 514,429.88

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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.