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Finding the Fourth Proportional to 358,870.95, 538,307.24 and 336,949.11

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Solution

The fourth proportional to 358,870.95, 538,307.24 and 336,949.11 is: 505,424.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,870.95 : 538,307.24 = 336,949.11 : x
  2. Step 2: Convert to fraction form
    358,870.95/538,307.24 = 336,949.11/x
  3. Step 3: Cross multiply
    358,870.95x = 538,307.24 × 336,949.11
  4. Step 4: Simplify right side
    358,870.95x = 181,382,143,739.81
  5. Step 5: Solve for x
    x = 181,382,143,739.81/358,870.95
  6. Step 6: Final answer
    x = 505,424.43

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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.