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Finding the Fourth Proportional to 346,487.40, 519,731.10 and 325,492.20

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Solution

The fourth proportional to 346,487.40, 519,731.10 and 325,492.20 is: 488,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,487.40 : 519,731.10 = 325,492.20 : x
  2. Step 2: Convert to fraction form
    346,487.40/519,731.10 = 325,492.20/x
  3. Step 3: Cross multiply
    346,487.40x = 519,731.10 × 325,492.20
  4. Step 4: Simplify right side
    346,487.40x = 169,168,419,147.42
  5. Step 5: Solve for x
    x = 169,168,419,147.42/346,487.40
  6. Step 6: Final answer
    x = 488,238.30

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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.