Home / 864,774.12-1,297,952.09-438,604.11

Finding the Fourth Proportional to 864,774.12, 1,297,952.09 and 438,604.11

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Solution

The fourth proportional to 864,774.12, 1,297,952.09 and 438,604.11 is: 658,307.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,774.12 : 1,297,952.09 = 438,604.11 : x
  2. Step 2: Convert to fraction form
    864,774.12/1,297,952.09 = 438,604.11/x
  3. Step 3: Cross multiply
    864,774.12x = 1,297,952.09 × 438,604.11
  4. Step 4: Simplify right side
    864,774.12x = 569,287,121,257.09
  5. Step 5: Solve for x
    x = 569,287,121,257.09/864,774.12
  6. Step 6: Final answer
    x = 658,307.31

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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.