Home / 1,605,638.72-2,215,763.16-926,560.64

Finding the Fourth Proportional to 1,605,638.72, 2,215,763.16 and 926,560.64

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Solution

The fourth proportional to 1,605,638.72, 2,215,763.16 and 926,560.64 is: 1,278,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,638.72 : 2,215,763.16 = 926,560.64 : x
  2. Step 2: Convert to fraction form
    1,605,638.72/2,215,763.16 = 926,560.64/x
  3. Step 3: Cross multiply
    1,605,638.72x = 2,215,763.16 × 926,560.64
  4. Step 4: Simplify right side
    1,605,638.72x = 2,053,038,931,618.02
  5. Step 5: Solve for x
    x = 2,053,038,931,618.02/1,605,638.72
  6. Step 6: Final answer
    x = 1,278,643.14

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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.