Home / 1,317,625.11-1,976,416.88-419,053.86

Finding the Fourth Proportional to 1,317,625.11, 1,976,416.88 and 419,053.86

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Solution

The fourth proportional to 1,317,625.11, 1,976,416.88 and 419,053.86 is: 628,574.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,625.11 : 1,976,416.88 = 419,053.86 : x
  2. Step 2: Convert to fraction form
    1,317,625.11/1,976,416.88 = 419,053.86/x
  3. Step 3: Cross multiply
    1,317,625.11x = 1,976,416.88 × 419,053.86
  4. Step 4: Simplify right side
    1,317,625.11x = 828,225,120,437.89
  5. Step 5: Solve for x
    x = 828,225,120,437.89/1,317,625.11
  6. Step 6: Final answer
    x = 628,574.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.