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Finding the Fourth Proportional to 344,121.67, 474,963.80 and 191,212.40

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Solution

The fourth proportional to 344,121.67, 474,963.80 and 191,212.40 is: 263,915.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,121.67 : 474,963.80 = 191,212.40 : x
  2. Step 2: Convert to fraction form
    344,121.67/474,963.80 = 191,212.40/x
  3. Step 3: Cross multiply
    344,121.67x = 474,963.80 × 191,212.40
  4. Step 4: Simplify right side
    344,121.67x = 90,818,966,746.37
  5. Step 5: Solve for x
    x = 90,818,966,746.37/344,121.67
  6. Step 6: Final answer
    x = 263,915.28

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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.