Home / 1,528,859.20-2,109,850.96-840,560.16

Finding the Fourth Proportional to 1,528,859.20, 2,109,850.96 and 840,560.16

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Solution

The fourth proportional to 1,528,859.20, 2,109,850.96 and 840,560.16 is: 1,159,986.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,859.20 : 2,109,850.96 = 840,560.16 : x
  2. Step 2: Convert to fraction form
    1,528,859.20/2,109,850.96 = 840,560.16/x
  3. Step 3: Cross multiply
    1,528,859.20x = 2,109,850.96 × 840,560.16
  4. Step 4: Simplify right side
    1,528,859.20x = 1,773,456,660,513.75
  5. Step 5: Solve for x
    x = 1,773,456,660,513.75/1,528,859.20
  6. Step 6: Final answer
    x = 1,159,986.91

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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.