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Finding the Fourth Proportional to 533,217.28, 735,848.59 and 318,376.12

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Solution

The fourth proportional to 533,217.28, 735,848.59 and 318,376.12 is: 439,364.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,217.28 : 735,848.59 = 318,376.12 : x
  2. Step 2: Convert to fraction form
    533,217.28/735,848.59 = 318,376.12/x
  3. Step 3: Cross multiply
    533,217.28x = 735,848.59 × 318,376.12
  4. Step 4: Simplify right side
    533,217.28x = 234,276,615,312.43
  5. Step 5: Solve for x
    x = 234,276,615,312.43/533,217.28
  6. Step 6: Final answer
    x = 439,364.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.