Home / 689,679.48-951,615.06-403,144.14

Finding the Fourth Proportional to 689,679.48, 951,615.06 and 403,144.14

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Solution

The fourth proportional to 689,679.48, 951,615.06 and 403,144.14 is: 556,255.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,679.48 : 951,615.06 = 403,144.14 : x
  2. Step 2: Convert to fraction form
    689,679.48/951,615.06 = 403,144.14/x
  3. Step 3: Cross multiply
    689,679.48x = 951,615.06 × 403,144.14
  4. Step 4: Simplify right side
    689,679.48x = 383,638,034,974.75
  5. Step 5: Solve for x
    x = 383,638,034,974.75/689,679.48
  6. Step 6: Final answer
    x = 556,255.54

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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.