Home / 694,038.79-957,388.85-403,618.56

Finding the Fourth Proportional to 694,038.79, 957,388.85 and 403,618.56

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Solution

The fourth proportional to 694,038.79, 957,388.85 and 403,618.56 is: 556,769.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,038.79 : 957,388.85 = 403,618.56 : x
  2. Step 2: Convert to fraction form
    694,038.79/957,388.85 = 403,618.56/x
  3. Step 3: Cross multiply
    694,038.79x = 957,388.85 × 403,618.56
  4. Step 4: Simplify right side
    694,038.79x = 386,419,902,192.02
  5. Step 5: Solve for x
    x = 386,419,902,192.02/694,038.79
  6. Step 6: Final answer
    x = 556,769.89

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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.