Home / 778,716.48-1,074,564.16-439,268.16

Finding the Fourth Proportional to 778,716.48, 1,074,564.16 and 439,268.16

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Solution

The fourth proportional to 778,716.48, 1,074,564.16 and 439,268.16 is: 606,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,716.48 : 1,074,564.16 = 439,268.16 : x
  2. Step 2: Convert to fraction form
    778,716.48/1,074,564.16 = 439,268.16/x
  3. Step 3: Cross multiply
    778,716.48x = 1,074,564.16 × 439,268.16
  4. Step 4: Simplify right side
    778,716.48x = 472,021,821,365.15
  5. Step 5: Solve for x
    x = 472,021,821,365.15/778,716.48
  6. Step 6: Final answer
    x = 606,153.63

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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.