Home / 807,811.36-1,114,774.10-445,235.42

Finding the Fourth Proportional to 807,811.36, 1,114,774.10 and 445,235.42

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Solution

The fourth proportional to 807,811.36, 1,114,774.10 and 445,235.42 is: 614,421.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,811.36 : 1,114,774.10 = 445,235.42 : x
  2. Step 2: Convert to fraction form
    807,811.36/1,114,774.10 = 445,235.42/x
  3. Step 3: Cross multiply
    807,811.36x = 1,114,774.10 × 445,235.42
  4. Step 4: Simplify right side
    807,811.36x = 496,336,914,618.62
  5. Step 5: Solve for x
    x = 496,336,914,618.62/807,811.36
  6. Step 6: Final answer
    x = 614,421.81

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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.