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Finding the Fourth Proportional to 525,016.48, 724,270.60 and 343,648.48

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Solution

The fourth proportional to 525,016.48, 724,270.60 and 343,648.48 is: 474,069.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,016.48 : 724,270.60 = 343,648.48 : x
  2. Step 2: Convert to fraction form
    525,016.48/724,270.60 = 343,648.48/x
  3. Step 3: Cross multiply
    525,016.48x = 724,270.60 × 343,648.48
  4. Step 4: Simplify right side
    525,016.48x = 248,894,490,798.69
  5. Step 5: Solve for x
    x = 248,894,490,798.69/525,016.48
  6. Step 6: Final answer
    x = 474,069.86

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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.