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Finding the Fourth Proportional to 627,049, 865,575.62 and 436,173.16

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Solution

The fourth proportional to 627,049, 865,575.62 and 436,173.16 is: 602,091.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,049 : 865,575.62 = 436,173.16 : x
  2. Step 2: Convert to fraction form
    627,049/865,575.62 = 436,173.16/x
  3. Step 3: Cross multiply
    627,049x = 865,575.62 × 436,173.16
  4. Step 4: Simplify right side
    627,049x = 377,540,853,394.36
  5. Step 5: Solve for x
    x = 377,540,853,394.36/627,049
  6. Step 6: Final answer
    x = 602,091.47

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1.5x scale

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.