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Finding the Fourth Proportional to 683,296.80, 942,930 and 381,484.32

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Solution

The fourth proportional to 683,296.80, 942,930 and 381,484.32 is: 526,437.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,296.80 : 942,930 = 381,484.32 : x
  2. Step 2: Convert to fraction form
    683,296.80/942,930 = 381,484.32/x
  3. Step 3: Cross multiply
    683,296.80x = 942,930 × 381,484.32
  4. Step 4: Simplify right side
    683,296.80x = 359,713,009,857.60
  5. Step 5: Solve for x
    x = 359,713,009,857.60/683,296.80
  6. Step 6: Final answer
    x = 526,437.43

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1.5x scale

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.