Home / 2,154,801.28-3,232,235.32-638,636.80

Finding the Fourth Proportional to 2,154,801.28, 3,232,235.32 and 638,636.80

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Solution

The fourth proportional to 2,154,801.28, 3,232,235.32 and 638,636.80 is: 957,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,801.28 : 3,232,235.32 = 638,636.80 : x
  2. Step 2: Convert to fraction form
    2,154,801.28/3,232,235.32 = 638,636.80/x
  3. Step 3: Cross multiply
    2,154,801.28x = 3,232,235.32 × 638,636.80
  4. Step 4: Simplify right side
    2,154,801.28x = 2,064,224,421,611.78
  5. Step 5: Solve for x
    x = 2,064,224,421,611.78/2,154,801.28
  6. Step 6: Final answer
    x = 957,965.10

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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.