Home / 816,516.14-1,126,728.43-453,917.93

Finding the Fourth Proportional to 816,516.14, 1,126,728.43 and 453,917.93

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Solution

The fourth proportional to 816,516.14, 1,126,728.43 and 453,917.93 is: 626,371.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,516.14 : 1,126,728.43 = 453,917.93 : x
  2. Step 2: Convert to fraction form
    816,516.14/1,126,728.43 = 453,917.93/x
  3. Step 3: Cross multiply
    816,516.14x = 1,126,728.43 × 453,917.93
  4. Step 4: Simplify right side
    816,516.14x = 511,442,229,849.31
  5. Step 5: Solve for x
    x = 511,442,229,849.31/816,516.14
  6. Step 6: Final answer
    x = 626,371.25

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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.