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Finding the Fourth Proportional to 545,239.98, 817,801.56 and 190,260.72

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Solution

The fourth proportional to 545,239.98, 817,801.56 and 190,260.72 is: 285,370.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,239.98 : 817,801.56 = 190,260.72 : x
  2. Step 2: Convert to fraction form
    545,239.98/817,801.56 = 190,260.72/x
  3. Step 3: Cross multiply
    545,239.98x = 817,801.56 × 190,260.72
  4. Step 4: Simplify right side
    545,239.98x = 155,595,513,622.72
  5. Step 5: Solve for x
    x = 155,595,513,622.72/545,239.98
  6. Step 6: Final answer
    x = 285,370.70

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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.