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Finding the Fourth Proportional to 553,530.36, 827,262.76 and 404,085.36

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Solution

The fourth proportional to 553,530.36, 827,262.76 and 404,085.36 is: 603,914.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,530.36 : 827,262.76 = 404,085.36 : x
  2. Step 2: Convert to fraction form
    553,530.36/827,262.76 = 404,085.36/x
  3. Step 3: Cross multiply
    553,530.36x = 827,262.76 × 404,085.36
  4. Step 4: Simplify right side
    553,530.36x = 334,284,770,189.19
  5. Step 5: Solve for x
    x = 334,284,770,189.19/553,530.36
  6. Step 6: Final answer
    x = 603,914.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.