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Finding the Fourth Proportional to 316,266.35, 436,457.90 and 173,023.07

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Solution

The fourth proportional to 316,266.35, 436,457.90 and 173,023.07 is: 238,777.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,266.35 : 436,457.90 = 173,023.07 : x
  2. Step 2: Convert to fraction form
    316,266.35/436,457.90 = 173,023.07/x
  3. Step 3: Cross multiply
    316,266.35x = 436,457.90 × 173,023.07
  4. Step 4: Simplify right side
    316,266.35x = 75,517,284,034.02
  5. Step 5: Solve for x
    x = 75,517,284,034.02/316,266.35
  6. Step 6: Final answer
    x = 238,777.49

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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.