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Finding the Fourth Proportional to 980,713.12, 1,353,618 and 599,061.28

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Solution

The fourth proportional to 980,713.12, 1,353,618 and 599,061.28 is: 826,847.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,713.12 : 1,353,618 = 599,061.28 : x
  2. Step 2: Convert to fraction form
    980,713.12/1,353,618 = 599,061.28/x
  3. Step 3: Cross multiply
    980,713.12x = 1,353,618 × 599,061.28
  4. Step 4: Simplify right side
    980,713.12x = 810,900,131,711.04
  5. Step 5: Solve for x
    x = 810,900,131,711.04/980,713.12
  6. Step 6: Final answer
    x = 826,847.44

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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.