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Finding the Fourth Proportional to 545,222.96, 817,776.10 and 190,243.70

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Solution

The fourth proportional to 545,222.96, 817,776.10 and 190,243.70 is: 285,345.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,222.96 : 817,776.10 = 190,243.70 : x
  2. Step 2: Convert to fraction form
    545,222.96/817,776.10 = 190,243.70/x
  3. Step 3: Cross multiply
    545,222.96x = 817,776.10 × 190,243.70
  4. Step 4: Simplify right side
    545,222.96x = 155,576,751,035.57
  5. Step 5: Solve for x
    x = 155,576,751,035.57/545,222.96
  6. Step 6: Final answer
    x = 285,345.19

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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.