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Finding the Fourth Proportional to 351,668.59, 485,301.99 and 190,528

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Solution

The fourth proportional to 351,668.59, 485,301.99 and 190,528 is: 262,928.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,668.59 : 485,301.99 = 190,528 : x
  2. Step 2: Convert to fraction form
    351,668.59/485,301.99 = 190,528/x
  3. Step 3: Cross multiply
    351,668.59x = 485,301.99 × 190,528
  4. Step 4: Simplify right side
    351,668.59x = 92,463,617,550.72
  5. Step 5: Solve for x
    x = 92,463,617,550.72/351,668.59
  6. Step 6: Final answer
    x = 262,928.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.