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Finding the Fourth Proportional to 704,750.86, 972,074.46 and 449,987.14

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Solution

The fourth proportional to 704,750.86, 972,074.46 and 449,987.14 is: 620,674.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,750.86 : 972,074.46 = 449,987.14 : x
  2. Step 2: Convert to fraction form
    704,750.86/972,074.46 = 449,987.14/x
  3. Step 3: Cross multiply
    704,750.86x = 972,074.46 × 449,987.14
  4. Step 4: Simplify right side
    704,750.86x = 437,421,006,122.44
  5. Step 5: Solve for x
    x = 437,421,006,122.44/704,750.86
  6. Step 6: Final answer
    x = 620,674.67

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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.