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Finding the Fourth Proportional to 1,285,773, 1,928,659.50 and 497,805

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Solution

The fourth proportional to 1,285,773, 1,928,659.50 and 497,805 is: 746,707.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,773 : 1,928,659.50 = 497,805 : x
  2. Step 2: Convert to fraction form
    1,285,773/1,928,659.50 = 497,805/x
  3. Step 3: Cross multiply
    1,285,773x = 1,928,659.50 × 497,805
  4. Step 4: Simplify right side
    1,285,773x = 960,096,342,397.50
  5. Step 5: Solve for x
    x = 960,096,342,397.50/1,285,773
  6. Step 6: Final answer
    x = 746,707.50

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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.