Home / 298,822.40-412,899.90-238,887.80

Finding the Fourth Proportional to 298,822.40, 412,899.90 and 238,887.80

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Solution

The fourth proportional to 298,822.40, 412,899.90 and 238,887.80 is: 330,084.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,822.40 : 412,899.90 = 238,887.80 : x
  2. Step 2: Convert to fraction form
    298,822.40/412,899.90 = 238,887.80/x
  3. Step 3: Cross multiply
    298,822.40x = 412,899.90 × 238,887.80
  4. Step 4: Simplify right side
    298,822.40x = 98,636,748,731.22
  5. Step 5: Solve for x
    x = 98,636,748,731.22/298,822.40
  6. Step 6: Final answer
    x = 330,084.86

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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.