Home / 857,998.62-1,184,015.54-470,812.86

Finding the Fourth Proportional to 857,998.62, 1,184,015.54 and 470,812.86

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Solution

The fourth proportional to 857,998.62, 1,184,015.54 and 470,812.86 is: 649,709.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,998.62 : 1,184,015.54 = 470,812.86 : x
  2. Step 2: Convert to fraction form
    857,998.62/1,184,015.54 = 470,812.86/x
  3. Step 3: Cross multiply
    857,998.62x = 1,184,015.54 × 470,812.86
  4. Step 4: Simplify right side
    857,998.62x = 557,449,742,671.84
  5. Step 5: Solve for x
    x = 557,449,742,671.84/857,998.62
  6. Step 6: Final answer
    x = 649,709.37

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Double scale
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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.