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Finding the Fourth Proportional to 644,801.57, 889,847.75 and 358,333.73

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Solution

The fourth proportional to 644,801.57, 889,847.75 and 358,333.73 is: 494,512.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,801.57 : 889,847.75 = 358,333.73 : x
  2. Step 2: Convert to fraction form
    644,801.57/889,847.75 = 358,333.73/x
  3. Step 3: Cross multiply
    644,801.57x = 889,847.75 × 358,333.73
  4. Step 4: Simplify right side
    644,801.57x = 318,862,461,597.94
  5. Step 5: Solve for x
    x = 318,862,461,597.94/644,801.57
  6. Step 6: Final answer
    x = 494,512.54

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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.