Home / 819,457.26-1,229,185.98-258,535.50

Finding the Fourth Proportional to 819,457.26, 1,229,185.98 and 258,535.50

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Solution

The fourth proportional to 819,457.26, 1,229,185.98 and 258,535.50 is: 387,803.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,457.26 : 1,229,185.98 = 258,535.50 : x
  2. Step 2: Convert to fraction form
    819,457.26/1,229,185.98 = 258,535.50/x
  3. Step 3: Cross multiply
    819,457.26x = 1,229,185.98 × 258,535.50
  4. Step 4: Simplify right side
    819,457.26x = 317,788,211,932.29
  5. Step 5: Solve for x
    x = 317,788,211,932.29/819,457.26
  6. Step 6: Final answer
    x = 387,803.28

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Half scale
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Double scale
Find fourth proportional to 819,458.26, 1,229,187.48 and 258,536.50
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.