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Finding the Fourth Proportional to 333,015.32, 459,603.23 and 218,390.42

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Solution

The fourth proportional to 333,015.32, 459,603.23 and 218,390.42 is: 301,406.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,015.32 : 459,603.23 = 218,390.42 : x
  2. Step 2: Convert to fraction form
    333,015.32/459,603.23 = 218,390.42/x
  3. Step 3: Cross multiply
    333,015.32x = 459,603.23 × 218,390.42
  4. Step 4: Simplify right side
    333,015.32x = 100,372,939,043.09
  5. Step 5: Solve for x
    x = 100,372,939,043.09/333,015.32
  6. Step 6: Final answer
    x = 301,406.38

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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.