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Finding the Fourth Proportional to 619,338.32, 854,686.28 and 351,066.32

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Solution

The fourth proportional to 619,338.32, 854,686.28 and 351,066.32 is: 484,471.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,338.32 : 854,686.28 = 351,066.32 : x
  2. Step 2: Convert to fraction form
    619,338.32/854,686.28 = 351,066.32/x
  3. Step 3: Cross multiply
    619,338.32x = 854,686.28 × 351,066.32
  4. Step 4: Simplify right side
    619,338.32x = 300,051,567,074.09
  5. Step 5: Solve for x
    x = 300,051,567,074.09/619,338.32
  6. Step 6: Final answer
    x = 484,471.18

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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.