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Finding the Fourth Proportional to 1,164.62, 1,746.98 and 384.69

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Solution

The fourth proportional to 1,164.62, 1,746.98 and 384.69 is: 577.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.62 : 1,746.98 = 384.69 : x
  2. Step 2: Convert to fraction form
    1,164.62/1,746.98 = 384.69/x
  3. Step 3: Cross multiply
    1,164.62x = 1,746.98 × 384.69
  4. Step 4: Simplify right side
    1,164.62x = 672,044.14
  5. Step 5: Solve for x
    x = 672,044.14/1,164.62
  6. Step 6: Final answer
    x = 577.05

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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.