Home / 403,455.21-556,768.13-222,166.69

Finding the Fourth Proportional to 403,455.21, 556,768.13 and 222,166.69

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Solution

The fourth proportional to 403,455.21, 556,768.13 and 222,166.69 is: 306,590.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,455.21 : 556,768.13 = 222,166.69 : x
  2. Step 2: Convert to fraction form
    403,455.21/556,768.13 = 222,166.69/x
  3. Step 3: Cross multiply
    403,455.21x = 556,768.13 × 222,166.69
  4. Step 4: Simplify right side
    403,455.21x = 123,695,331,984.17
  5. Step 5: Solve for x
    x = 123,695,331,984.17/403,455.21
  6. Step 6: Final answer
    x = 306,590.00

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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.