Home / 2,638,320.80-3,957,439.59-841,192.16

Finding the Fourth Proportional to 2,638,320.80, 3,957,439.59 and 841,192.16

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Solution

The fourth proportional to 2,638,320.80, 3,957,439.59 and 841,192.16 is: 1,261,774.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,320.80 : 3,957,439.59 = 841,192.16 : x
  2. Step 2: Convert to fraction form
    2,638,320.80/3,957,439.59 = 841,192.16/x
  3. Step 3: Cross multiply
    2,638,320.80x = 3,957,439.59 × 841,192.16
  4. Step 4: Simplify right side
    2,638,320.80x = 3,328,967,136,994.42
  5. Step 5: Solve for x
    x = 3,328,967,136,994.42/2,638,320.80
  6. Step 6: Final answer
    x = 1,261,774.97

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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.