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Finding the Fourth Proportional to 884,276.64, 1,325,430 and 351,655.20

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Solution

The fourth proportional to 884,276.64, 1,325,430 and 351,655.20 is: 527,091.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,276.64 : 1,325,430 = 351,655.20 : x
  2. Step 2: Convert to fraction form
    884,276.64/1,325,430 = 351,655.20/x
  3. Step 3: Cross multiply
    884,276.64x = 1,325,430 × 351,655.20
  4. Step 4: Simplify right side
    884,276.64x = 466,094,351,736
  5. Step 5: Solve for x
    x = 466,094,351,736/884,276.64
  6. Step 6: Final answer
    x = 527,091.11

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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.