Home / 638,955.69-881,729.14-366,832.06

Finding the Fourth Proportional to 638,955.69, 881,729.14 and 366,832.06

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Solution

The fourth proportional to 638,955.69, 881,729.14 and 366,832.06 is: 506,211.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,955.69 : 881,729.14 = 366,832.06 : x
  2. Step 2: Convert to fraction form
    638,955.69/881,729.14 = 366,832.06/x
  3. Step 3: Cross multiply
    638,955.69x = 881,729.14 × 366,832.06
  4. Step 4: Simplify right side
    638,955.69x = 323,446,516,788.23
  5. Step 5: Solve for x
    x = 323,446,516,788.23/638,955.69
  6. Step 6: Final answer
    x = 506,211.18

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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.