Home / 2,154,897.78-3,232,378.26-638,734.20

Finding the Fourth Proportional to 2,154,897.78, 3,232,378.26 and 638,734.20

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Solution

The fourth proportional to 2,154,897.78, 3,232,378.26 and 638,734.20 is: 958,110.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,897.78 : 3,232,378.26 = 638,734.20 : x
  2. Step 2: Convert to fraction form
    2,154,897.78/3,232,378.26 = 638,734.20/x
  3. Step 3: Cross multiply
    2,154,897.78x = 3,232,378.26 × 638,734.20
  4. Step 4: Simplify right side
    2,154,897.78x = 2,064,630,541,998.49
  5. Step 5: Solve for x
    x = 2,064,630,541,998.49/2,154,897.78
  6. Step 6: Final answer
    x = 958,110.66

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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.