Home / 314,905.90-472,416.45-127,936.30

Finding the Fourth Proportional to 314,905.90, 472,416.45 and 127,936.30

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Solution

The fourth proportional to 314,905.90, 472,416.45 and 127,936.30 is: 191,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,905.90 : 472,416.45 = 127,936.30 : x
  2. Step 2: Convert to fraction form
    314,905.90/472,416.45 = 127,936.30/x
  3. Step 3: Cross multiply
    314,905.90x = 472,416.45 × 127,936.30
  4. Step 4: Simplify right side
    314,905.90x = 60,439,212,672.14
  5. Step 5: Solve for x
    x = 60,439,212,672.14/314,905.90
  6. Step 6: Final answer
    x = 191,927.85

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1.5x scale

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.