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Finding the Fourth Proportional to 364,041.20, 546,061.80 and 325,987.40

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Solution

The fourth proportional to 364,041.20, 546,061.80 and 325,987.40 is: 488,981.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,041.20 : 546,061.80 = 325,987.40 : x
  2. Step 2: Convert to fraction form
    364,041.20/546,061.80 = 325,987.40/x
  3. Step 3: Cross multiply
    364,041.20x = 546,061.80 × 325,987.40
  4. Step 4: Simplify right side
    364,041.20x = 178,009,266,421.32
  5. Step 5: Solve for x
    x = 178,009,266,421.32/364,041.20
  6. Step 6: Final answer
    x = 488,981.10

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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.