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Finding the Fourth Proportional to 1,592.36, 2,387.06 and 619.18

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Solution

The fourth proportional to 1,592.36, 2,387.06 and 619.18 is: 928.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,592.36 : 2,387.06 = 619.18 : x
  2. Step 2: Convert to fraction form
    1,592.36/2,387.06 = 619.18/x
  3. Step 3: Cross multiply
    1,592.36x = 2,387.06 × 619.18
  4. Step 4: Simplify right side
    1,592.36x = 1,478,019.81
  5. Step 5: Solve for x
    x = 1,478,019.81/1,592.36
  6. Step 6: Final answer
    x = 928.19

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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.