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Finding the Fourth Proportional to 525,625.78, 785,558.89 and 383,770.14

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Solution

The fourth proportional to 525,625.78, 785,558.89 and 383,770.14 is: 573,552.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,625.78 : 785,558.89 = 383,770.14 : x
  2. Step 2: Convert to fraction form
    525,625.78/785,558.89 = 383,770.14/x
  3. Step 3: Cross multiply
    525,625.78x = 785,558.89 × 383,770.14
  4. Step 4: Simplify right side
    525,625.78x = 301,474,042,225.18
  5. Step 5: Solve for x
    x = 301,474,042,225.18/525,625.78
  6. Step 6: Final answer
    x = 573,552.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.