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Finding the Fourth Proportional to 1,416.56, 2,124.82 and 583.45

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Solution

The fourth proportional to 1,416.56, 2,124.82 and 583.45 is: 875.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.56 : 2,124.82 = 583.45 : x
  2. Step 2: Convert to fraction form
    1,416.56/2,124.82 = 583.45/x
  3. Step 3: Cross multiply
    1,416.56x = 2,124.82 × 583.45
  4. Step 4: Simplify right side
    1,416.56x = 1,239,726.23
  5. Step 5: Solve for x
    x = 1,239,726.23/1,416.56
  6. Step 6: Final answer
    x = 875.17

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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.