Home / 867,991.96-1,197,848.20-495,447.38

Finding the Fourth Proportional to 867,991.96, 1,197,848.20 and 495,447.38

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Solution

The fourth proportional to 867,991.96, 1,197,848.20 and 495,447.38 is: 683,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,991.96 : 1,197,848.20 = 495,447.38 : x
  2. Step 2: Convert to fraction form
    867,991.96/1,197,848.20 = 495,447.38/x
  3. Step 3: Cross multiply
    867,991.96x = 1,197,848.20 × 495,447.38
  4. Step 4: Simplify right side
    867,991.96x = 593,470,752,327.72
  5. Step 5: Solve for x
    x = 593,470,752,327.72/867,991.96
  6. Step 6: Final answer
    x = 683,728.40

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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.