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Finding the Fourth Proportional to 529,643.52, 794,465.64 and 155,928.96

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Solution

The fourth proportional to 529,643.52, 794,465.64 and 155,928.96 is: 233,893.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,643.52 : 794,465.64 = 155,928.96 : x
  2. Step 2: Convert to fraction form
    529,643.52/794,465.64 = 155,928.96/x
  3. Step 3: Cross multiply
    529,643.52x = 794,465.64 × 155,928.96
  4. Step 4: Simplify right side
    529,643.52x = 123,880,201,000.93
  5. Step 5: Solve for x
    x = 123,880,201,000.93/529,643.52
  6. Step 6: Final answer
    x = 233,893.55

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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.