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Finding the Fourth Proportional to 533,620.89, 736,402.68 and 291,903.47

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Solution

The fourth proportional to 533,620.89, 736,402.68 and 291,903.47 is: 402,829.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,620.89 : 736,402.68 = 291,903.47 : x
  2. Step 2: Convert to fraction form
    533,620.89/736,402.68 = 291,903.47/x
  3. Step 3: Cross multiply
    533,620.89x = 736,402.68 × 291,903.47
  4. Step 4: Simplify right side
    533,620.89x = 214,958,495,229.28
  5. Step 5: Solve for x
    x = 214,958,495,229.28/533,620.89
  6. Step 6: Final answer
    x = 402,829.98

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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.