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Finding the Fourth Proportional to 443,172.29, 610,842.44 and 313,945.19

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Solution

The fourth proportional to 443,172.29, 610,842.44 and 313,945.19 is: 432,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,172.29 : 610,842.44 = 313,945.19 : x
  2. Step 2: Convert to fraction form
    443,172.29/610,842.44 = 313,945.19/x
  3. Step 3: Cross multiply
    443,172.29x = 610,842.44 × 313,945.19
  4. Step 4: Simplify right side
    443,172.29x = 191,771,045,885.86
  5. Step 5: Solve for x
    x = 191,771,045,885.86/443,172.29
  6. Step 6: Final answer
    x = 432,723.46

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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.