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Finding the Fourth Proportional to 626,316.14, 864,540.42 and 371,667.32

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Solution

The fourth proportional to 626,316.14, 864,540.42 and 371,667.32 is: 513,033.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,316.14 : 864,540.42 = 371,667.32 : x
  2. Step 2: Convert to fraction form
    626,316.14/864,540.42 = 371,667.32/x
  3. Step 3: Cross multiply
    626,316.14x = 864,540.42 × 371,667.32
  4. Step 4: Simplify right side
    626,316.14x = 321,321,420,933.07
  5. Step 5: Solve for x
    x = 321,321,420,933.07/626,316.14
  6. Step 6: Final answer
    x = 513,033.91

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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.