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Finding the Fourth Proportional to 448,066.40, 671,662.20 and 400,827.20

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Solution

The fourth proportional to 448,066.40, 671,662.20 and 400,827.20 is: 600,849.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,066.40 : 671,662.20 = 400,827.20 : x
  2. Step 2: Convert to fraction form
    448,066.40/671,662.20 = 400,827.20/x
  3. Step 3: Cross multiply
    448,066.40x = 671,662.20 × 400,827.20
  4. Step 4: Simplify right side
    448,066.40x = 269,220,478,971.84
  5. Step 5: Solve for x
    x = 269,220,478,971.84/448,066.40
  6. Step 6: Final answer
    x = 600,849.51

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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.