Home / 319,631.28-441,090.72-176,391.30

Finding the Fourth Proportional to 319,631.28, 441,090.72 and 176,391.30

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Solution

The fourth proportional to 319,631.28, 441,090.72 and 176,391.30 is: 243,419.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,631.28 : 441,090.72 = 176,391.30 : x
  2. Step 2: Convert to fraction form
    319,631.28/441,090.72 = 176,391.30/x
  3. Step 3: Cross multiply
    319,631.28x = 441,090.72 × 176,391.30
  4. Step 4: Simplify right side
    319,631.28x = 77,804,565,518.74
  5. Step 5: Solve for x
    x = 77,804,565,518.74/319,631.28
  6. Step 6: Final answer
    x = 243,419.75

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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.