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Finding the Fourth Proportional to 1,984,300.56, 2,974,526.28 and 785,824.56

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Solution

The fourth proportional to 1,984,300.56, 2,974,526.28 and 785,824.56 is: 1,177,974.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,300.56 : 2,974,526.28 = 785,824.56 : x
  2. Step 2: Convert to fraction form
    1,984,300.56/2,974,526.28 = 785,824.56/x
  3. Step 3: Cross multiply
    1,984,300.56x = 2,974,526.28 × 785,824.56
  4. Step 4: Simplify right side
    1,984,300.56x = 2,337,455,805,189.44
  5. Step 5: Solve for x
    x = 2,337,455,805,189.44/1,984,300.56
  6. Step 6: Final answer
    x = 1,177,974.67

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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.