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Finding the Fourth Proportional to 448,964.10, 671,502.15 and 401,919.30

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Solution

The fourth proportional to 448,964.10, 671,502.15 and 401,919.30 is: 601,138.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,964.10 : 671,502.15 = 401,919.30 : x
  2. Step 2: Convert to fraction form
    448,964.10/671,502.15 = 401,919.30/x
  3. Step 3: Cross multiply
    448,964.10x = 671,502.15 × 401,919.30
  4. Step 4: Simplify right side
    448,964.10x = 269,889,674,076.50
  5. Step 5: Solve for x
    x = 269,889,674,076.50/448,964.10
  6. Step 6: Final answer
    x = 601,138.65

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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.