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Finding the Fourth Proportional to 451,697.40, 677,108.70 and 404,458.20

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Solution

The fourth proportional to 451,697.40, 677,108.70 and 404,458.20 is: 606,295.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,697.40 : 677,108.70 = 404,458.20 : x
  2. Step 2: Convert to fraction form
    451,697.40/677,108.70 = 404,458.20/x
  3. Step 3: Cross multiply
    451,697.40x = 677,108.70 × 404,458.20
  4. Step 4: Simplify right side
    451,697.40x = 273,862,166,006.34
  5. Step 5: Solve for x
    x = 273,862,166,006.34/451,697.40
  6. Step 6: Final answer
    x = 606,295.64

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1.5x scale

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.