Home / 689,193.40-950,947.38-402,658.14

Finding the Fourth Proportional to 689,193.40, 950,947.38 and 402,658.14

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Solution

The fourth proportional to 689,193.40, 950,947.38 and 402,658.14 is: 555,586.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,193.40 : 950,947.38 = 402,658.14 : x
  2. Step 2: Convert to fraction form
    689,193.40/950,947.38 = 402,658.14/x
  3. Step 3: Cross multiply
    689,193.40x = 950,947.38 × 402,658.14
  4. Step 4: Simplify right side
    689,193.40x = 382,906,703,268.67
  5. Step 5: Solve for x
    x = 382,906,703,268.67/689,193.40
  6. Step 6: Final answer
    x = 555,586.72

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Double scale
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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.