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Finding the Fourth Proportional to 1,060.36, 1,590.32 and 483.08

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Solution

The fourth proportional to 1,060.36, 1,590.32 and 483.08 is: 724.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.36 : 1,590.32 = 483.08 : x
  2. Step 2: Convert to fraction form
    1,060.36/1,590.32 = 483.08/x
  3. Step 3: Cross multiply
    1,060.36x = 1,590.32 × 483.08
  4. Step 4: Simplify right side
    1,060.36x = 768,251.79
  5. Step 5: Solve for x
    x = 768,251.79/1,060.36
  6. Step 6: Final answer
    x = 724.52

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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.