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Finding the Fourth Proportional to 313,606.83, 432,781.11 and 170,369.13

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Solution

The fourth proportional to 313,606.83, 432,781.11 and 170,369.13 is: 235,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,606.83 : 432,781.11 = 170,369.13 : x
  2. Step 2: Convert to fraction form
    313,606.83/432,781.11 = 170,369.13/x
  3. Step 3: Cross multiply
    313,606.83x = 432,781.11 × 170,369.13
  4. Step 4: Simplify right side
    313,606.83x = 73,732,541,191.13
  5. Step 5: Solve for x
    x = 73,732,541,191.13/313,606.83
  6. Step 6: Final answer
    x = 235,111.40

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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.