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Finding the Fourth Proportional to 316,300.44, 436,490.72 and 173,058.44

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Solution

The fourth proportional to 316,300.44, 436,490.72 and 173,058.44 is: 238,818.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,300.44 : 436,490.72 = 173,058.44 : x
  2. Step 2: Convert to fraction form
    316,300.44/436,490.72 = 173,058.44/x
  3. Step 3: Cross multiply
    316,300.44x = 436,490.72 × 173,058.44
  4. Step 4: Simplify right side
    316,300.44x = 75,538,403,077.68
  5. Step 5: Solve for x
    x = 75,538,403,077.68/316,300.44
  6. Step 6: Final answer
    x = 238,818.52

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1.5x scale

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.