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Finding the Fourth Proportional to 1,035,219, 1,428,101.37 and 667,599.03

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Solution

The fourth proportional to 1,035,219, 1,428,101.37 and 667,599.03 is: 920,963.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035,219 : 1,428,101.37 = 667,599.03 : x
  2. Step 2: Convert to fraction form
    1,035,219/1,428,101.37 = 667,599.03/x
  3. Step 3: Cross multiply
    1,035,219x = 1,428,101.37 × 667,599.03
  4. Step 4: Simplify right side
    1,035,219x = 953,399,089,353.67
  5. Step 5: Solve for x
    x = 953,399,089,353.67/1,035,219
  6. Step 6: Final answer
    x = 920,963.67

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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.