Home / 639,331.65-882,392.00-381,225.29

Finding the Fourth Proportional to 639,331.65, 882,392.00 and 381,225.29

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Solution

The fourth proportional to 639,331.65, 882,392.00 and 381,225.29 is: 526,159.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,331.65 : 882,392.00 = 381,225.29 : x
  2. Step 2: Convert to fraction form
    639,331.65/882,392.00 = 381,225.29/x
  3. Step 3: Cross multiply
    639,331.65x = 882,392.00 × 381,225.29
  4. Step 4: Simplify right side
    639,331.65x = 336,390,139,775.59
  5. Step 5: Solve for x
    x = 336,390,139,775.59/639,331.65
  6. Step 6: Final answer
    x = 526,159.06

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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.