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Finding the Fourth Proportional to 298,381.88, 411,802.13 and 167,581.06

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Solution

The fourth proportional to 298,381.88, 411,802.13 and 167,581.06 is: 231,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,381.88 : 411,802.13 = 167,581.06 : x
  2. Step 2: Convert to fraction form
    298,381.88/411,802.13 = 167,581.06/x
  3. Step 3: Cross multiply
    298,381.88x = 411,802.13 × 167,581.06
  4. Step 4: Simplify right side
    298,381.88x = 69,010,237,455.66
  5. Step 5: Solve for x
    x = 69,010,237,455.66/298,381.88
  6. Step 6: Final answer
    x = 231,281.60

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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.