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Finding the Fourth Proportional to 316,447.94, 436,702.25 and 173,204.90

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Solution

The fourth proportional to 316,447.94, 436,702.25 and 173,204.90 is: 239,025.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,447.94 : 436,702.25 = 173,204.90 : x
  2. Step 2: Convert to fraction form
    316,447.94/436,702.25 = 173,204.90/x
  3. Step 3: Cross multiply
    316,447.94x = 436,702.25 × 173,204.90
  4. Step 4: Simplify right side
    316,447.94x = 75,638,968,675.00
  5. Step 5: Solve for x
    x = 75,638,968,675.00/316,447.94
  6. Step 6: Final answer
    x = 239,025.00

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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.