Home / 801,918.11-1,106,647.89-439,365.15

Finding the Fourth Proportional to 801,918.11, 1,106,647.89 and 439,365.15

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Solution

The fourth proportional to 801,918.11, 1,106,647.89 and 439,365.15 is: 606,324.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,918.11 : 1,106,647.89 = 439,365.15 : x
  2. Step 2: Convert to fraction form
    801,918.11/1,106,647.89 = 439,365.15/x
  3. Step 3: Cross multiply
    801,918.11x = 1,106,647.89 × 439,365.15
  4. Step 4: Simplify right side
    801,918.11x = 486,222,513,990.21
  5. Step 5: Solve for x
    x = 486,222,513,990.21/801,918.11
  6. Step 6: Final answer
    x = 606,324.40

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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.