Home / 403,438.41-556,748.65-222,156.77

Finding the Fourth Proportional to 403,438.41, 556,748.65 and 222,156.77

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Solution

The fourth proportional to 403,438.41, 556,748.65 and 222,156.77 is: 306,578.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,438.41 : 556,748.65 = 222,156.77 : x
  2. Step 2: Convert to fraction form
    403,438.41/556,748.65 = 222,156.77/x
  3. Step 3: Cross multiply
    403,438.41x = 556,748.65 × 222,156.77
  4. Step 4: Simplify right side
    403,438.41x = 123,685,479,279.81
  5. Step 5: Solve for x
    x = 123,685,479,279.81/403,438.41
  6. Step 6: Final answer
    x = 306,578.34

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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.