Home / 891,516.76-1,229,993.82-509,272.84

Finding the Fourth Proportional to 891,516.76, 1,229,993.82 and 509,272.84

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Solution

The fourth proportional to 891,516.76, 1,229,993.82 and 509,272.84 is: 702,625.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,516.76 : 1,229,993.82 = 509,272.84 : x
  2. Step 2: Convert to fraction form
    891,516.76/1,229,993.82 = 509,272.84/x
  3. Step 3: Cross multiply
    891,516.76x = 1,229,993.82 × 509,272.84
  4. Step 4: Simplify right side
    891,516.76x = 626,402,445,893.85
  5. Step 5: Solve for x
    x = 626,402,445,893.85/891,516.76
  6. Step 6: Final answer
    x = 702,625.54

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Half scale
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Double scale
Find fourth proportional to 891,517.76, 1,229,995.20 and 509,273.84
Similar ratio
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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.