Home / 1,919,804.86-2,879,392.06-640,422.16

Finding the Fourth Proportional to 1,919,804.86, 2,879,392.06 and 640,422.16

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Solution

The fourth proportional to 1,919,804.86, 2,879,392.06 and 640,422.16 is: 960,528.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,804.86 : 2,879,392.06 = 640,422.16 : x
  2. Step 2: Convert to fraction form
    1,919,804.86/2,879,392.06 = 640,422.16/x
  3. Step 3: Cross multiply
    1,919,804.86x = 2,879,392.06 × 640,422.16
  4. Step 4: Simplify right side
    1,919,804.86x = 1,844,026,482,552.05
  5. Step 5: Solve for x
    x = 1,844,026,482,552.05/1,919,804.86
  6. Step 6: Final answer
    x = 960,528.08

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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.