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Finding the Fourth Proportional to 882,322.56, 1,323,414.72 and 321,482.88

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Solution

The fourth proportional to 882,322.56, 1,323,414.72 and 321,482.88 is: 482,199.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,322.56 : 1,323,414.72 = 321,482.88 : x
  2. Step 2: Convert to fraction form
    882,322.56/1,323,414.72 = 321,482.88/x
  3. Step 3: Cross multiply
    882,322.56x = 1,323,414.72 × 321,482.88
  4. Step 4: Simplify right side
    882,322.56x = 425,455,175,619.99
  5. Step 5: Solve for x
    x = 425,455,175,619.99/882,322.56
  6. Step 6: Final answer
    x = 482,199.14

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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.