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Finding the Fourth Proportional to 384,885.40, 577,328.10 and 363,112.60

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Solution

The fourth proportional to 384,885.40, 577,328.10 and 363,112.60 is: 544,668.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,885.40 : 577,328.10 = 363,112.60 : x
  2. Step 2: Convert to fraction form
    384,885.40/577,328.10 = 363,112.60/x
  3. Step 3: Cross multiply
    384,885.40x = 577,328.10 × 363,112.60
  4. Step 4: Simplify right side
    384,885.40x = 209,635,107,444.06
  5. Step 5: Solve for x
    x = 209,635,107,444.06/384,885.40
  6. Step 6: Final answer
    x = 544,668.90

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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.