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Finding the Fourth Proportional to 347,015.40, 521,300.70 and 332,845.80

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Solution

The fourth proportional to 347,015.40, 521,300.70 and 332,845.80 is: 500,014.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,015.40 : 521,300.70 = 332,845.80 : x
  2. Step 2: Convert to fraction form
    347,015.40/521,300.70 = 332,845.80/x
  3. Step 3: Cross multiply
    347,015.40x = 521,300.70 × 332,845.80
  4. Step 4: Simplify right side
    347,015.40x = 173,512,748,532.06
  5. Step 5: Solve for x
    x = 173,512,748,532.06/347,015.40
  6. Step 6: Final answer
    x = 500,014.55

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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.