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Finding the Fourth Proportional to 624,119.51, 861,309.35 and 365,960.57

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Solution

The fourth proportional to 624,119.51, 861,309.35 and 365,960.57 is: 505,039.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,119.51 : 861,309.35 = 365,960.57 : x
  2. Step 2: Convert to fraction form
    624,119.51/861,309.35 = 365,960.57/x
  3. Step 3: Cross multiply
    624,119.51x = 861,309.35 × 365,960.57
  4. Step 4: Simplify right side
    624,119.51x = 315,205,255,908.33
  5. Step 5: Solve for x
    x = 315,205,255,908.33/624,119.51
  6. Step 6: Final answer
    x = 505,039.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.