Home / 1,212,857,585.55-1,673,744,584.05-655,940,632.59

Finding the Fourth Proportional to 1,212,857,585.55, 1,673,744,584.05 and 655,940,632.59

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Solution

The fourth proportional to 1,212,857,585.55, 1,673,744,584.05 and 655,940,632.59 is: 905,198,676.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,857,585.55 : 1,673,744,584.05 = 655,940,632.59 : x
  2. Step 2: Convert to fraction form
    1,212,857,585.55/1,673,744,584.05 = 655,940,632.59/x
  3. Step 3: Cross multiply
    1,212,857,585.55x = 1,673,744,584.05 × 655,940,632.59
  4. Step 4: Simplify right side
    1,212,857,585.55x = 1,097,877,081,255,843,456
  5. Step 5: Solve for x
    x = 1,097,877,081,255,843,456/1,212,857,585.55
  6. Step 6: Final answer
    x = 905,198,676.53

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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.