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Finding the Fourth Proportional to 531,805.12, 797,707.27 and 157,828.12

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Solution

The fourth proportional to 531,805.12, 797,707.27 and 157,828.12 is: 236,742.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,805.12 : 797,707.27 = 157,828.12 : x
  2. Step 2: Convert to fraction form
    531,805.12/797,707.27 = 157,828.12/x
  3. Step 3: Cross multiply
    531,805.12x = 797,707.27 × 157,828.12
  4. Step 4: Simplify right side
    531,805.12x = 125,900,638,734.43
  5. Step 5: Solve for x
    x = 125,900,638,734.43/531,805.12
  6. Step 6: Final answer
    x = 236,742.06

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.