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Finding the Fourth Proportional to 1,585.58, 2,379.12 and 1,000.46

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Solution

The fourth proportional to 1,585.58, 2,379.12 and 1,000.46 is: 1,501.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.58 : 2,379.12 = 1,000.46 : x
  2. Step 2: Convert to fraction form
    1,585.58/2,379.12 = 1,000.46/x
  3. Step 3: Cross multiply
    1,585.58x = 2,379.12 × 1,000.46
  4. Step 4: Simplify right side
    1,585.58x = 2,380,214.40
  5. Step 5: Solve for x
    x = 2,380,214.40/1,585.58
  6. Step 6: Final answer
    x = 1,501.16

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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.