Home / 505,980.16-698,267.10-276,550.24

Finding the Fourth Proportional to 505,980.16, 698,267.10 and 276,550.24

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Solution

The fourth proportional to 505,980.16, 698,267.10 and 276,550.24 is: 381,647.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,980.16 : 698,267.10 = 276,550.24 : x
  2. Step 2: Convert to fraction form
    505,980.16/698,267.10 = 276,550.24/x
  3. Step 3: Cross multiply
    505,980.16x = 698,267.10 × 276,550.24
  4. Step 4: Simplify right side
    505,980.16x = 193,105,934,089.10
  5. Step 5: Solve for x
    x = 193,105,934,089.10/505,980.16
  6. Step 6: Final answer
    x = 381,647.25

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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.