Home / 839,391.48-1,258,964.57-412,812.81

Finding the Fourth Proportional to 839,391.48, 1,258,964.57 and 412,812.81

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Solution

The fourth proportional to 839,391.48, 1,258,964.57 and 412,812.81 is: 619,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,391.48 : 1,258,964.57 = 412,812.81 : x
  2. Step 2: Convert to fraction form
    839,391.48/1,258,964.57 = 412,812.81/x
  3. Step 3: Cross multiply
    839,391.48x = 1,258,964.57 × 412,812.81
  4. Step 4: Simplify right side
    839,391.48x = 519,716,702,864.17
  5. Step 5: Solve for x
    x = 519,716,702,864.17/839,391.48
  6. Step 6: Final answer
    x = 619,158.90

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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.