Home / 403,111.68-556,287.08-219,344.05

Finding the Fourth Proportional to 403,111.68, 556,287.08 and 219,344.05

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Solution

The fourth proportional to 403,111.68, 556,287.08 and 219,344.05 is: 302,690.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,111.68 : 556,287.08 = 219,344.05 : x
  2. Step 2: Convert to fraction form
    403,111.68/556,287.08 = 219,344.05/x
  3. Step 3: Cross multiply
    403,111.68x = 556,287.08 × 219,344.05
  4. Step 4: Simplify right side
    403,111.68x = 122,018,262,333.59
  5. Step 5: Solve for x
    x = 122,018,262,333.59/403,111.68
  6. Step 6: Final answer
    x = 302,690.96

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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.