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Finding the Fourth Proportional to 316,305.56, 436,497.72 and 180,335.18

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Solution

The fourth proportional to 316,305.56, 436,497.72 and 180,335.18 is: 248,860.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,305.56 : 436,497.72 = 180,335.18 : x
  2. Step 2: Convert to fraction form
    316,305.56/436,497.72 = 180,335.18/x
  3. Step 3: Cross multiply
    316,305.56x = 436,497.72 × 180,335.18
  4. Step 4: Simplify right side
    316,305.56x = 78,715,894,905.79
  5. Step 5: Solve for x
    x = 78,715,894,905.79/316,305.56
  6. Step 6: Final answer
    x = 248,860.29

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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.