Home / 651,479.36-899,092.44-419,113.80

Finding the Fourth Proportional to 651,479.36, 899,092.44 and 419,113.80

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Solution

The fourth proportional to 651,479.36, 899,092.44 and 419,113.80 is: 578,409.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,479.36 : 899,092.44 = 419,113.80 : x
  2. Step 2: Convert to fraction form
    651,479.36/899,092.44 = 419,113.80/x
  3. Step 3: Cross multiply
    651,479.36x = 899,092.44 × 419,113.80
  4. Step 4: Simplify right side
    651,479.36x = 376,822,049,079.67
  5. Step 5: Solve for x
    x = 376,822,049,079.67/651,479.36
  6. Step 6: Final answer
    x = 578,409.81

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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.