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Finding the Fourth Proportional to 459,954.45, 634,736.21 and 258,750.45

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Solution

The fourth proportional to 459,954.45, 634,736.21 and 258,750.45 is: 357,075.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,954.45 : 634,736.21 = 258,750.45 : x
  2. Step 2: Convert to fraction form
    459,954.45/634,736.21 = 258,750.45/x
  3. Step 3: Cross multiply
    459,954.45x = 634,736.21 × 258,750.45
  4. Step 4: Simplify right side
    459,954.45x = 164,238,278,675.04
  5. Step 5: Solve for x
    x = 164,238,278,675.04/459,954.45
  6. Step 6: Final answer
    x = 357,075.09

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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.