Home / 808,045.23-1,115,109.63-445,481.85

Finding the Fourth Proportional to 808,045.23, 1,115,109.63 and 445,481.85

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Solution

The fourth proportional to 808,045.23, 1,115,109.63 and 445,481.85 is: 614,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,045.23 : 1,115,109.63 = 445,481.85 : x
  2. Step 2: Convert to fraction form
    808,045.23/1,115,109.63 = 445,481.85/x
  3. Step 3: Cross multiply
    808,045.23x = 1,115,109.63 × 445,481.85
  4. Step 4: Simplify right side
    808,045.23x = 496,761,100,925.22
  5. Step 5: Solve for x
    x = 496,761,100,925.22/808,045.23
  6. Step 6: Final answer
    x = 614,768.93

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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.