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Finding the Fourth Proportional to 572,969.50, 859,454.40 and 213,093.34

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Solution

The fourth proportional to 572,969.50, 859,454.40 and 213,093.34 is: 319,640.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,969.50 : 859,454.40 = 213,093.34 : x
  2. Step 2: Convert to fraction form
    572,969.50/859,454.40 = 213,093.34/x
  3. Step 3: Cross multiply
    572,969.50x = 859,454.40 × 213,093.34
  4. Step 4: Simplify right side
    572,969.50x = 183,144,008,673.70
  5. Step 5: Solve for x
    x = 183,144,008,673.70/572,969.50
  6. Step 6: Final answer
    x = 319,640.07

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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.