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Finding the Fourth Proportional to 525,663.60, 788,884.20 and 348,111.60

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Solution

The fourth proportional to 525,663.60, 788,884.20 and 348,111.60 is: 522,424.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,663.60 : 788,884.20 = 348,111.60 : x
  2. Step 2: Convert to fraction form
    525,663.60/788,884.20 = 348,111.60/x
  3. Step 3: Cross multiply
    525,663.60x = 788,884.20 × 348,111.60
  4. Step 4: Simplify right side
    525,663.60x = 274,619,741,076.72
  5. Step 5: Solve for x
    x = 274,619,741,076.72/525,663.60
  6. Step 6: Final answer
    x = 522,424.88

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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.