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Finding the Fourth Proportional to 525,632.80, 788,017.20 and 226,343.20

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Solution

The fourth proportional to 525,632.80, 788,017.20 and 226,343.20 is: 339,328.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,632.80 : 788,017.20 = 226,343.20 : x
  2. Step 2: Convert to fraction form
    525,632.80/788,017.20 = 226,343.20/x
  3. Step 3: Cross multiply
    525,632.80x = 788,017.20 × 226,343.20
  4. Step 4: Simplify right side
    525,632.80x = 178,362,334,703.04
  5. Step 5: Solve for x
    x = 178,362,334,703.04/525,632.80
  6. Step 6: Final answer
    x = 339,328.78

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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.