Home / 289,467.12-399,601.44-194,036.16

Finding the Fourth Proportional to 289,467.12, 399,601.44 and 194,036.16

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Solution

The fourth proportional to 289,467.12, 399,601.44 and 194,036.16 is: 267,861.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,467.12 : 399,601.44 = 194,036.16 : x
  2. Step 2: Convert to fraction form
    289,467.12/399,601.44 = 194,036.16/x
  3. Step 3: Cross multiply
    289,467.12x = 399,601.44 × 194,036.16
  4. Step 4: Simplify right side
    289,467.12x = 77,537,128,948.07
  5. Step 5: Solve for x
    x = 77,537,128,948.07/289,467.12
  6. Step 6: Final answer
    x = 267,861.61

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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.