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Finding the Fourth Proportional to 319,698.21, 441,117.67 and 183,705.89

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Solution

The fourth proportional to 319,698.21, 441,117.67 and 183,705.89 is: 253,476.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,698.21 : 441,117.67 = 183,705.89 : x
  2. Step 2: Convert to fraction form
    319,698.21/441,117.67 = 183,705.89/x
  3. Step 3: Cross multiply
    319,698.21x = 441,117.67 × 183,705.89
  4. Step 4: Simplify right side
    319,698.21x = 81,035,912,415.75
  5. Step 5: Solve for x
    x = 81,035,912,415.75/319,698.21
  6. Step 6: Final answer
    x = 253,476.28

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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.