Home / 829,400.70-1,244,101.05-409,496.70

Finding the Fourth Proportional to 829,400.70, 1,244,101.05 and 409,496.70

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Solution

The fourth proportional to 829,400.70, 1,244,101.05 and 409,496.70 is: 614,245.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,400.70 : 1,244,101.05 = 409,496.70 : x
  2. Step 2: Convert to fraction form
    829,400.70/1,244,101.05 = 409,496.70/x
  3. Step 3: Cross multiply
    829,400.70x = 1,244,101.05 × 409,496.70
  4. Step 4: Simplify right side
    829,400.70x = 509,455,274,441.54
  5. Step 5: Solve for x
    x = 509,455,274,441.54/829,400.70
  6. Step 6: Final answer
    x = 614,245.05

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.