Home / 879,697.44-1,215,121.32-650,720.16

Finding the Fourth Proportional to 879,697.44, 1,215,121.32 and 650,720.16

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Solution

The fourth proportional to 879,697.44, 1,215,121.32 and 650,720.16 is: 898,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,697.44 : 1,215,121.32 = 650,720.16 : x
  2. Step 2: Convert to fraction form
    879,697.44/1,215,121.32 = 650,720.16/x
  3. Step 3: Cross multiply
    879,697.44x = 1,215,121.32 × 650,720.16
  4. Step 4: Simplify right side
    879,697.44x = 790,703,939,769.81
  5. Step 5: Solve for x
    x = 790,703,939,769.81/879,697.44
  6. Step 6: Final answer
    x = 898,836.24

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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.