Home / 801,986.95-1,106,769.54-439,409.71

Finding the Fourth Proportional to 801,986.95, 1,106,769.54 and 439,409.71

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Solution

The fourth proportional to 801,986.95, 1,106,769.54 and 439,409.71 is: 606,400.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,986.95 : 1,106,769.54 = 439,409.71 : x
  2. Step 2: Convert to fraction form
    801,986.95/1,106,769.54 = 439,409.71/x
  3. Step 3: Cross multiply
    801,986.95x = 1,106,769.54 × 439,409.71
  4. Step 4: Simplify right side
    801,986.95x = 486,325,282,608.23
  5. Step 5: Solve for x
    x = 486,325,282,608.23/801,986.95
  6. Step 6: Final answer
    x = 606,400.49

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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.