Home / 409,179.78-613,376.01-209,594.16

Finding the Fourth Proportional to 409,179.78, 613,376.01 and 209,594.16

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Solution

The fourth proportional to 409,179.78, 613,376.01 and 209,594.16 is: 314,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,179.78 : 613,376.01 = 209,594.16 : x
  2. Step 2: Convert to fraction form
    409,179.78/613,376.01 = 209,594.16/x
  3. Step 3: Cross multiply
    409,179.78x = 613,376.01 × 209,594.16
  4. Step 4: Simplify right side
    409,179.78x = 128,560,029,580.10
  5. Step 5: Solve for x
    x = 128,560,029,580.10/409,179.78
  6. Step 6: Final answer
    x = 314,189.60

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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.