Home / 809,404.75-1,117,014.71-465,352.29

Finding the Fourth Proportional to 809,404.75, 1,117,014.71 and 465,352.29

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Solution

The fourth proportional to 809,404.75, 1,117,014.71 and 465,352.29 is: 642,206.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,404.75 : 1,117,014.71 = 465,352.29 : x
  2. Step 2: Convert to fraction form
    809,404.75/1,117,014.71 = 465,352.29/x
  3. Step 3: Cross multiply
    809,404.75x = 1,117,014.71 × 465,352.29
  4. Step 4: Simplify right side
    809,404.75x = 519,805,350,935.42
  5. Step 5: Solve for x
    x = 519,805,350,935.42/809,404.75
  6. Step 6: Final answer
    x = 642,206.94

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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.