Home / 816,560.41-1,126,890.75-454,021.42

Finding the Fourth Proportional to 816,560.41, 1,126,890.75 and 454,021.42

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Solution

The fourth proportional to 816,560.41, 1,126,890.75 and 454,021.42 is: 626,570.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,560.41 : 1,126,890.75 = 454,021.42 : x
  2. Step 2: Convert to fraction form
    816,560.41/1,126,890.75 = 454,021.42/x
  3. Step 3: Cross multiply
    816,560.41x = 1,126,890.75 × 454,021.42
  4. Step 4: Simplify right side
    816,560.41x = 511,632,538,499.87
  5. Step 5: Solve for x
    x = 511,632,538,499.87/816,560.41
  6. Step 6: Final answer
    x = 626,570.35

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Double scale
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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.