Home / 809,144.76-1,116,581.80-464,738.40

Finding the Fourth Proportional to 809,144.76, 1,116,581.80 and 464,738.40

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Solution

The fourth proportional to 809,144.76, 1,116,581.80 and 464,738.40 is: 641,317.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,144.76 : 1,116,581.80 = 464,738.40 : x
  2. Step 2: Convert to fraction form
    809,144.76/1,116,581.80 = 464,738.40/x
  3. Step 3: Cross multiply
    809,144.76x = 1,116,581.80 × 464,738.40
  4. Step 4: Simplify right side
    809,144.76x = 518,918,439,201.12
  5. Step 5: Solve for x
    x = 518,918,439,201.12/809,144.76
  6. Step 6: Final answer
    x = 641,317.18

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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.