Home / 808,211.93-1,115,340.23-445,648.64

Finding the Fourth Proportional to 808,211.93, 1,115,340.23 and 445,648.64

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Solution

The fourth proportional to 808,211.93, 1,115,340.23 and 445,648.64 is: 614,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,211.93 : 1,115,340.23 = 445,648.64 : x
  2. Step 2: Convert to fraction form
    808,211.93/1,115,340.23 = 445,648.64/x
  3. Step 3: Cross multiply
    808,211.93x = 1,115,340.23 × 445,648.64
  4. Step 4: Simplify right side
    808,211.93x = 497,049,852,174.21
  5. Step 5: Solve for x
    x = 497,049,852,174.21/808,211.93
  6. Step 6: Final answer
    x = 614,999.40

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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.