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Finding the Fourth Proportional to 1,668.63, 2,503.00 and 572.99

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Solution

The fourth proportional to 1,668.63, 2,503.00 and 572.99 is: 859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.63 : 2,503.00 = 572.99 : x
  2. Step 2: Convert to fraction form
    1,668.63/2,503.00 = 572.99/x
  3. Step 3: Cross multiply
    1,668.63x = 2,503.00 × 572.99
  4. Step 4: Simplify right side
    1,668.63x = 1,434,182.17
  5. Step 5: Solve for x
    x = 1,434,182.17/1,668.63
  6. Step 6: Final answer
    x = 859.50

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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.