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Finding the Fourth Proportional to 525,945.76, 788,840.88 and 193,444

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Solution

The fourth proportional to 525,945.76, 788,840.88 and 193,444 is: 290,137.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,945.76 : 788,840.88 = 193,444 : x
  2. Step 2: Convert to fraction form
    525,945.76/788,840.88 = 193,444/x
  3. Step 3: Cross multiply
    525,945.76x = 788,840.88 × 193,444
  4. Step 4: Simplify right side
    525,945.76x = 152,596,535,190.72
  5. Step 5: Solve for x
    x = 152,596,535,190.72/525,945.76
  6. Step 6: Final answer
    x = 290,137.40

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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.