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Finding the Fourth Proportional to 1,592.73, 2,389.05 and 619.02

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Solution

The fourth proportional to 1,592.73, 2,389.05 and 619.02 is: 928.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,592.73 : 2,389.05 = 619.02 : x
  2. Step 2: Convert to fraction form
    1,592.73/2,389.05 = 619.02/x
  3. Step 3: Cross multiply
    1,592.73x = 2,389.05 × 619.02
  4. Step 4: Simplify right side
    1,592.73x = 1,478,869.73
  5. Step 5: Solve for x
    x = 1,478,869.73/1,592.73
  6. Step 6: Final answer
    x = 928.51

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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.