Home / 1,382,975.92-1,908,527.16-771,110.56

Finding the Fourth Proportional to 1,382,975.92, 1,908,527.16 and 771,110.56

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Solution

The fourth proportional to 1,382,975.92, 1,908,527.16 and 771,110.56 is: 1,064,143.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,975.92 : 1,908,527.16 = 771,110.56 : x
  2. Step 2: Convert to fraction form
    1,382,975.92/1,908,527.16 = 771,110.56/x
  3. Step 3: Cross multiply
    1,382,975.92x = 1,908,527.16 × 771,110.56
  4. Step 4: Simplify right side
    1,382,975.92x = 1,471,685,447,122.81
  5. Step 5: Solve for x
    x = 1,471,685,447,122.81/1,382,975.92
  6. Step 6: Final answer
    x = 1,064,143.94

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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.