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Finding the Fourth Proportional to 1,670.24, 2,503.68 and 574.08

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Solution

The fourth proportional to 1,670.24, 2,503.68 and 574.08 is: 860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.24 : 2,503.68 = 574.08 : x
  2. Step 2: Convert to fraction form
    1,670.24/2,503.68 = 574.08/x
  3. Step 3: Cross multiply
    1,670.24x = 2,503.68 × 574.08
  4. Step 4: Simplify right side
    1,670.24x = 1,437,312.61
  5. Step 5: Solve for x
    x = 1,437,312.61/1,670.24
  6. Step 6: Final answer
    x = 860.54

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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.