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Finding the Fourth Proportional to 316,466.65, 436,707.07 and 173,198.98

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Solution

The fourth proportional to 316,466.65, 436,707.07 and 173,198.98 is: 239,005.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,466.65 : 436,707.07 = 173,198.98 : x
  2. Step 2: Convert to fraction form
    316,466.65/436,707.07 = 173,198.98/x
  3. Step 3: Cross multiply
    316,466.65x = 436,707.07 × 173,198.98
  4. Step 4: Simplify right side
    316,466.65x = 75,637,219,082.79
  5. Step 5: Solve for x
    x = 75,637,219,082.79/316,466.65
  6. Step 6: Final answer
    x = 239,005.34

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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.