Home / 898,950.36-1,240,555.77-491,057.85

Finding the Fourth Proportional to 898,950.36, 1,240,555.77 and 491,057.85

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Solution

The fourth proportional to 898,950.36, 1,240,555.77 and 491,057.85 is: 677,662.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,950.36 : 1,240,555.77 = 491,057.85 : x
  2. Step 2: Convert to fraction form
    898,950.36/1,240,555.77 = 491,057.85/x
  3. Step 3: Cross multiply
    898,950.36x = 1,240,555.77 × 491,057.85
  4. Step 4: Simplify right side
    898,950.36x = 609,184,649,221.29
  5. Step 5: Solve for x
    x = 609,184,649,221.29/898,950.36
  6. Step 6: Final answer
    x = 677,662.17

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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.