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Finding the Fourth Proportional to 406,219.64, 608,931.74 and 169,629.98

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Solution

The fourth proportional to 406,219.64, 608,931.74 and 169,629.98 is: 254,278.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,219.64 : 608,931.74 = 169,629.98 : x
  2. Step 2: Convert to fraction form
    406,219.64/608,931.74 = 169,629.98/x
  3. Step 3: Cross multiply
    406,219.64x = 608,931.74 × 169,629.98
  4. Step 4: Simplify right side
    406,219.64x = 103,293,075,832.91
  5. Step 5: Solve for x
    x = 103,293,075,832.91/406,219.64
  6. Step 6: Final answer
    x = 254,278.88

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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.