Home / 808,105.03-1,115,133.55-445,509.07

Finding the Fourth Proportional to 808,105.03, 1,115,133.55 and 445,509.07

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Solution

The fourth proportional to 808,105.03, 1,115,133.55 and 445,509.07 is: 614,774.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,105.03 : 1,115,133.55 = 445,509.07 : x
  2. Step 2: Convert to fraction form
    808,105.03/1,115,133.55 = 445,509.07/x
  3. Step 3: Cross multiply
    808,105.03x = 1,115,133.55 × 445,509.07
  4. Step 4: Simplify right side
    808,105.03x = 496,802,110,786.30
  5. Step 5: Solve for x
    x = 496,802,110,786.30/808,105.03
  6. Step 6: Final answer
    x = 614,774.18

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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.