Home / 811,926.18-1,120,419.54-444,395.16

Finding the Fourth Proportional to 811,926.18, 1,120,419.54 and 444,395.16

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Solution

The fourth proportional to 811,926.18, 1,120,419.54 and 444,395.16 is: 613,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,926.18 : 1,120,419.54 = 444,395.16 : x
  2. Step 2: Convert to fraction form
    811,926.18/1,120,419.54 = 444,395.16/x
  3. Step 3: Cross multiply
    811,926.18x = 1,120,419.54 × 444,395.16
  4. Step 4: Simplify right side
    811,926.18x = 497,909,020,745.43
  5. Step 5: Solve for x
    x = 497,909,020,745.43/811,926.18
  6. Step 6: Final answer
    x = 613,244.20

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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.