Home / 829,850.40-1,244,775.60-409,071.60

Finding the Fourth Proportional to 829,850.40, 1,244,775.60 and 409,071.60

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Solution

The fourth proportional to 829,850.40, 1,244,775.60 and 409,071.60 is: 613,607.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,850.40 : 1,244,775.60 = 409,071.60 : x
  2. Step 2: Convert to fraction form
    829,850.40/1,244,775.60 = 409,071.60/x
  3. Step 3: Cross multiply
    829,850.40x = 1,244,775.60 × 409,071.60
  4. Step 4: Simplify right side
    829,850.40x = 509,202,346,332.96
  5. Step 5: Solve for x
    x = 509,202,346,332.96/829,850.40
  6. Step 6: Final answer
    x = 613,607.40

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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.