Home / 864,212.47-1,193,061.60-631,378.28

Finding the Fourth Proportional to 864,212.47, 1,193,061.60 and 631,378.28

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Solution

The fourth proportional to 864,212.47, 1,193,061.60 and 631,378.28 is: 871,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,212.47 : 1,193,061.60 = 631,378.28 : x
  2. Step 2: Convert to fraction form
    864,212.47/1,193,061.60 = 631,378.28/x
  3. Step 3: Cross multiply
    864,212.47x = 1,193,061.60 × 631,378.28
  4. Step 4: Simplify right side
    864,212.47x = 753,273,180,942.05
  5. Step 5: Solve for x
    x = 753,273,180,942.05/864,212.47
  6. Step 6: Final answer
    x = 871,629.61

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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.