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Finding the Fourth Proportional to 423,264.12, 634,655.56 and 327,167.32

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Solution

The fourth proportional to 423,264.12, 634,655.56 and 327,167.32 is: 490,564.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,264.12 : 634,655.56 = 327,167.32 : x
  2. Step 2: Convert to fraction form
    423,264.12/634,655.56 = 327,167.32/x
  3. Step 3: Cross multiply
    423,264.12x = 634,655.56 × 327,167.32
  4. Step 4: Simplify right side
    423,264.12x = 207,638,558,688.30
  5. Step 5: Solve for x
    x = 207,638,558,688.30/423,264.12
  6. Step 6: Final answer
    x = 490,564.99

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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.