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Finding the Fourth Proportional to 1,036.38, 1,430.45 and 594.54

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Solution

The fourth proportional to 1,036.38, 1,430.45 and 594.54 is: 820.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.38 : 1,430.45 = 594.54 : x
  2. Step 2: Convert to fraction form
    1,036.38/1,430.45 = 594.54/x
  3. Step 3: Cross multiply
    1,036.38x = 1,430.45 × 594.54
  4. Step 4: Simplify right side
    1,036.38x = 850,459.74
  5. Step 5: Solve for x
    x = 850,459.74/1,036.38
  6. Step 6: Final answer
    x = 820.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.