Home / 1,293,286.65-1,784,874.79-712,568.16

Finding the Fourth Proportional to 1,293,286.65, 1,784,874.79 and 712,568.16

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Solution

The fourth proportional to 1,293,286.65, 1,784,874.79 and 712,568.16 is: 983,420.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,286.65 : 1,784,874.79 = 712,568.16 : x
  2. Step 2: Convert to fraction form
    1,293,286.65/1,784,874.79 = 712,568.16/x
  3. Step 3: Cross multiply
    1,293,286.65x = 1,784,874.79 × 712,568.16
  4. Step 4: Simplify right side
    1,293,286.65x = 1,271,844,944,940.69
  5. Step 5: Solve for x
    x = 1,271,844,944,940.69/1,293,286.65
  6. Step 6: Final answer
    x = 983,420.76

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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.