Home / 1,189,025.93-1,783,724.76-390,125.77

Finding the Fourth Proportional to 1,189,025.93, 1,783,724.76 and 390,125.77

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Solution

The fourth proportional to 1,189,025.93, 1,783,724.76 and 390,125.77 is: 585,249.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,025.93 : 1,783,724.76 = 390,125.77 : x
  2. Step 2: Convert to fraction form
    1,189,025.93/1,783,724.76 = 390,125.77/x
  3. Step 3: Cross multiply
    1,189,025.93x = 1,783,724.76 × 390,125.77
  4. Step 4: Simplify right side
    1,189,025.93x = 695,876,991,003.75
  5. Step 5: Solve for x
    x = 695,876,991,003.75/1,189,025.93
  6. Step 6: Final answer
    x = 585,249.63

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Double scale
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1.5x scale

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.