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Finding the Fourth Proportional to 572,903.40, 859,706.10 and 236,105.40

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Solution

The fourth proportional to 572,903.40, 859,706.10 and 236,105.40 is: 354,302.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,903.40 : 859,706.10 = 236,105.40 : x
  2. Step 2: Convert to fraction form
    572,903.40/859,706.10 = 236,105.40/x
  3. Step 3: Cross multiply
    572,903.40x = 859,706.10 × 236,105.40
  4. Step 4: Simplify right side
    572,903.40x = 202,981,252,622.94
  5. Step 5: Solve for x
    x = 202,981,252,622.94/572,903.40
  6. Step 6: Final answer
    x = 354,302.75

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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.