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Finding the Fourth Proportional to 541,976.40, 812,089.80 and 341,938.80

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Solution

The fourth proportional to 541,976.40, 812,089.80 and 341,938.80 is: 512,356.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,976.40 : 812,089.80 = 341,938.80 : x
  2. Step 2: Convert to fraction form
    541,976.40/812,089.80 = 341,938.80/x
  3. Step 3: Cross multiply
    541,976.40x = 812,089.80 × 341,938.80
  4. Step 4: Simplify right side
    541,976.40x = 277,685,011,704.24
  5. Step 5: Solve for x
    x = 277,685,011,704.24/541,976.40
  6. Step 6: Final answer
    x = 512,356.28

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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.