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Finding the Fourth Proportional to 617,648.22, 926,547.08 and 218,207.25

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Solution

The fourth proportional to 617,648.22, 926,547.08 and 218,207.25 is: 327,337.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,648.22 : 926,547.08 = 218,207.25 : x
  2. Step 2: Convert to fraction form
    617,648.22/926,547.08 = 218,207.25/x
  3. Step 3: Cross multiply
    617,648.22x = 926,547.08 × 218,207.25
  4. Step 4: Simplify right side
    617,648.22x = 202,179,289,231.29
  5. Step 5: Solve for x
    x = 202,179,289,231.29/617,648.22
  6. Step 6: Final answer
    x = 327,337.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.