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Finding the Fourth Proportional to 529,790.48, 794,685.47 and 155,813.48

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Solution

The fourth proportional to 529,790.48, 794,685.47 and 155,813.48 is: 233,720.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,790.48 : 794,685.47 = 155,813.48 : x
  2. Step 2: Convert to fraction form
    529,790.48/794,685.47 = 155,813.48/x
  3. Step 3: Cross multiply
    529,790.48x = 794,685.47 × 155,813.48
  4. Step 4: Simplify right side
    529,790.48x = 123,822,703,833.64
  5. Step 5: Solve for x
    x = 123,822,703,833.64/529,790.48
  6. Step 6: Final answer
    x = 233,720.14

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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.