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Finding the Fourth Proportional to 980,532, 1,353,191.96 and 738,387.36

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Solution

The fourth proportional to 980,532, 1,353,191.96 and 738,387.36 is: 1,019,018.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,532 : 1,353,191.96 = 738,387.36 : x
  2. Step 2: Convert to fraction form
    980,532/1,353,191.96 = 738,387.36/x
  3. Step 3: Cross multiply
    980,532x = 1,353,191.96 × 738,387.36
  4. Step 4: Simplify right side
    980,532x = 999,179,835,225.69
  5. Step 5: Solve for x
    x = 999,179,835,225.69/980,532
  6. Step 6: Final answer
    x = 1,019,018.08

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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.