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Finding the Fourth Proportional to 533,530.88, 736,190.88 and 307,132.64

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Solution

The fourth proportional to 533,530.88, 736,190.88 and 307,132.64 is: 423,795.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,530.88 : 736,190.88 = 307,132.64 : x
  2. Step 2: Convert to fraction form
    533,530.88/736,190.88 = 307,132.64/x
  3. Step 3: Cross multiply
    533,530.88x = 736,190.88 × 307,132.64
  4. Step 4: Simplify right side
    533,530.88x = 226,108,248,518.32
  5. Step 5: Solve for x
    x = 226,108,248,518.32/533,530.88
  6. Step 6: Final answer
    x = 423,795.99

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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.