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Finding the Fourth Proportional to 590,804.69, 815,306.32 and 322,532.69

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Solution

The fourth proportional to 590,804.69, 815,306.32 and 322,532.69 is: 445,092.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,804.69 : 815,306.32 = 322,532.69 : x
  2. Step 2: Convert to fraction form
    590,804.69/815,306.32 = 322,532.69/x
  3. Step 3: Cross multiply
    590,804.69x = 815,306.32 × 322,532.69
  4. Step 4: Simplify right side
    590,804.69x = 262,962,940,563.60
  5. Step 5: Solve for x
    x = 262,962,940,563.60/590,804.69
  6. Step 6: Final answer
    x = 445,092.85

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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.