Home / 628,386.86-867,181.24-341,909.30

Finding the Fourth Proportional to 628,386.86, 867,181.24 and 341,909.30

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Solution

The fourth proportional to 628,386.86, 867,181.24 and 341,909.30 is: 471,838.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,386.86 : 867,181.24 = 341,909.30 : x
  2. Step 2: Convert to fraction form
    628,386.86/867,181.24 = 341,909.30/x
  3. Step 3: Cross multiply
    628,386.86x = 867,181.24 × 341,909.30
  4. Step 4: Simplify right side
    628,386.86x = 296,497,333,336.87
  5. Step 5: Solve for x
    x = 296,497,333,336.87/628,386.86
  6. Step 6: Final answer
    x = 471,838.85

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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.