Home / 694,724.46-958,415.40-408,115.23

Finding the Fourth Proportional to 694,724.46, 958,415.40 and 408,115.23

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Solution

The fourth proportional to 694,724.46, 958,415.40 and 408,115.23 is: 563,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,724.46 : 958,415.40 = 408,115.23 : x
  2. Step 2: Convert to fraction form
    694,724.46/958,415.40 = 408,115.23/x
  3. Step 3: Cross multiply
    694,724.46x = 958,415.40 × 408,115.23
  4. Step 4: Simplify right side
    694,724.46x = 391,143,921,406.54
  5. Step 5: Solve for x
    x = 391,143,921,406.54/694,724.46
  6. Step 6: Final answer
    x = 563,020.22

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Half scale
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Double scale
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Similar ratio
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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.