Home / 373,629.65-515,620.28-212,507.89

Finding the Fourth Proportional to 373,629.65, 515,620.28 and 212,507.89

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Solution

The fourth proportional to 373,629.65, 515,620.28 and 212,507.89 is: 293,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,629.65 : 515,620.28 = 212,507.89 : x
  2. Step 2: Convert to fraction form
    373,629.65/515,620.28 = 212,507.89/x
  3. Step 3: Cross multiply
    373,629.65x = 515,620.28 × 212,507.89
  4. Step 4: Simplify right side
    373,629.65x = 109,573,376,986.23
  5. Step 5: Solve for x
    x = 109,573,376,986.23/373,629.65
  6. Step 6: Final answer
    x = 293,267.35

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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.