Home / 879,698.44-1,215,122.70-650,721.16

Finding the Fourth Proportional to 879,698.44, 1,215,122.70 and 650,721.16

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Solution

The fourth proportional to 879,698.44, 1,215,122.70 and 650,721.16 is: 898,837.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,698.44 : 1,215,122.70 = 650,721.16 : x
  2. Step 2: Convert to fraction form
    879,698.44/1,215,122.70 = 650,721.16/x
  3. Step 3: Cross multiply
    879,698.44x = 1,215,122.70 × 650,721.16
  4. Step 4: Simplify right side
    879,698.44x = 790,706,052,886.33
  5. Step 5: Solve for x
    x = 790,706,052,886.33/879,698.44
  6. Step 6: Final answer
    x = 898,837.62

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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.