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Finding the Fourth Proportional to 541,422.40, 812,133.60 and 373,460.80

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Solution

The fourth proportional to 541,422.40, 812,133.60 and 373,460.80 is: 560,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,422.40 : 812,133.60 = 373,460.80 : x
  2. Step 2: Convert to fraction form
    541,422.40/812,133.60 = 373,460.80/x
  3. Step 3: Cross multiply
    541,422.40x = 812,133.60 × 373,460.80
  4. Step 4: Simplify right side
    541,422.40x = 303,300,063,962.88
  5. Step 5: Solve for x
    x = 303,300,063,962.88/541,422.40
  6. Step 6: Final answer
    x = 560,191.20

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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.