Home / 493,819.96-681,526.85-278,973.87

Finding the Fourth Proportional to 493,819.96, 681,526.85 and 278,973.87

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Solution

The fourth proportional to 493,819.96, 681,526.85 and 278,973.87 is: 385,015.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,819.96 : 681,526.85 = 278,973.87 : x
  2. Step 2: Convert to fraction form
    493,819.96/681,526.85 = 278,973.87/x
  3. Step 3: Cross multiply
    493,819.96x = 681,526.85 × 278,973.87
  4. Step 4: Simplify right side
    493,819.96x = 190,128,182,853.41
  5. Step 5: Solve for x
    x = 190,128,182,853.41/493,819.96
  6. Step 6: Final answer
    x = 385,015.18

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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.