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Finding the Fourth Proportional to 734,212.80, 1,101,319.20 and 706,219.20

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Solution

The fourth proportional to 734,212.80, 1,101,319.20 and 706,219.20 is: 1,059,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,212.80 : 1,101,319.20 = 706,219.20 : x
  2. Step 2: Convert to fraction form
    734,212.80/1,101,319.20 = 706,219.20/x
  3. Step 3: Cross multiply
    734,212.80x = 1,101,319.20 × 706,219.20
  4. Step 4: Simplify right side
    734,212.80x = 777,772,764,368.64
  5. Step 5: Solve for x
    x = 777,772,764,368.64/734,212.80
  6. Step 6: Final answer
    x = 1,059,328.80

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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.