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Finding the Fourth Proportional to 364,039.20, 546,058.80 and 325,985.40

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Solution

The fourth proportional to 364,039.20, 546,058.80 and 325,985.40 is: 488,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,039.20 : 546,058.80 = 325,985.40 : x
  2. Step 2: Convert to fraction form
    364,039.20/546,058.80 = 325,985.40/x
  3. Step 3: Cross multiply
    364,039.20x = 546,058.80 × 325,985.40
  4. Step 4: Simplify right side
    364,039.20x = 178,007,196,341.52
  5. Step 5: Solve for x
    x = 178,007,196,341.52/364,039.20
  6. Step 6: Final answer
    x = 488,978.10

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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.