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Finding the Fourth Proportional to 463,603.36, 639,699.52 and 270,042.92

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Solution

The fourth proportional to 463,603.36, 639,699.52 and 270,042.92 is: 372,616.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,603.36 : 639,699.52 = 270,042.92 : x
  2. Step 2: Convert to fraction form
    463,603.36/639,699.52 = 270,042.92/x
  3. Step 3: Cross multiply
    463,603.36x = 639,699.52 × 270,042.92
  4. Step 4: Simplify right side
    463,603.36x = 172,746,326,303.40
  5. Step 5: Solve for x
    x = 172,746,326,303.40/463,603.36
  6. Step 6: Final answer
    x = 372,616.64

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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.