Home / 403,234.37-556,459.01-221,942.39

Finding the Fourth Proportional to 403,234.37, 556,459.01 and 221,942.39

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Solution

The fourth proportional to 403,234.37, 556,459.01 and 221,942.39 is: 306,278.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,234.37 : 556,459.01 = 221,942.39 : x
  2. Step 2: Convert to fraction form
    403,234.37/556,459.01 = 221,942.39/x
  3. Step 3: Cross multiply
    403,234.37x = 556,459.01 × 221,942.39
  4. Step 4: Simplify right side
    403,234.37x = 123,501,838,724.43
  5. Step 5: Solve for x
    x = 123,501,838,724.43/403,234.37
  6. Step 6: Final answer
    x = 306,278.06

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1.5x scale

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.