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Finding the Fourth Proportional to 413,605.79, 620,585.23 and 200,531.07

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Solution

The fourth proportional to 413,605.79, 620,585.23 and 200,531.07 is: 300,882.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,605.79 : 620,585.23 = 200,531.07 : x
  2. Step 2: Convert to fraction form
    413,605.79/620,585.23 = 200,531.07/x
  3. Step 3: Cross multiply
    413,605.79x = 620,585.23 × 200,531.07
  4. Step 4: Simplify right side
    413,605.79x = 124,446,619,696.77
  5. Step 5: Solve for x
    x = 124,446,619,696.77/413,605.79
  6. Step 6: Final answer
    x = 300,882.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.