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Finding the Fourth Proportional to 556,033.48, 767,408.18 and 352,103.02

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Solution

The fourth proportional to 556,033.48, 767,408.18 and 352,103.02 is: 485,954.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,033.48 : 767,408.18 = 352,103.02 : x
  2. Step 2: Convert to fraction form
    556,033.48/767,408.18 = 352,103.02/x
  3. Step 3: Cross multiply
    556,033.48x = 767,408.18 × 352,103.02
  4. Step 4: Simplify right side
    556,033.48x = 270,206,734,071.67
  5. Step 5: Solve for x
    x = 270,206,734,071.67/556,033.48
  6. Step 6: Final answer
    x = 485,954.07

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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.