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Finding the Fourth Proportional to 493,792.01, 681,430.87 and 276,000.39

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Solution

The fourth proportional to 493,792.01, 681,430.87 and 276,000.39 is: 380,879.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,792.01 : 681,430.87 = 276,000.39 : x
  2. Step 2: Convert to fraction form
    493,792.01/681,430.87 = 276,000.39/x
  3. Step 3: Cross multiply
    493,792.01x = 681,430.87 × 276,000.39
  4. Step 4: Simplify right side
    493,792.01x = 188,075,185,188.04
  5. Step 5: Solve for x
    x = 188,075,185,188.04/493,792.01
  6. Step 6: Final answer
    x = 380,879.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.