Home / 805,728.09-1,206,259.20-606,886.05

Finding the Fourth Proportional to 805,728.09, 1,206,259.20 and 606,886.05

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Solution

The fourth proportional to 805,728.09, 1,206,259.20 and 606,886.05 is: 908,571.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,728.09 : 1,206,259.20 = 606,886.05 : x
  2. Step 2: Convert to fraction form
    805,728.09/1,206,259.20 = 606,886.05/x
  3. Step 3: Cross multiply
    805,728.09x = 1,206,259.20 × 606,886.05
  4. Step 4: Simplify right side
    805,728.09x = 732,061,881,164.16
  5. Step 5: Solve for x
    x = 732,061,881,164.16/805,728.09
  6. Step 6: Final answer
    x = 908,571.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.