Home / 798,085.80-1,197,128.70-265,624.20

Finding the Fourth Proportional to 798,085.80, 1,197,128.70 and 265,624.20

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Solution

The fourth proportional to 798,085.80, 1,197,128.70 and 265,624.20 is: 398,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,085.80 : 1,197,128.70 = 265,624.20 : x
  2. Step 2: Convert to fraction form
    798,085.80/1,197,128.70 = 265,624.20/x
  3. Step 3: Cross multiply
    798,085.80x = 1,197,128.70 × 265,624.20
  4. Step 4: Simplify right side
    798,085.80x = 317,986,353,234.54
  5. Step 5: Solve for x
    x = 317,986,353,234.54/798,085.80
  6. Step 6: Final answer
    x = 398,436.30

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Double scale
Find fourth proportional to 798,086.80, 1,197,130.20 and 265,625.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.