Home / 2,619,488.47-3,929,886.65-913,656.28

Finding the Fourth Proportional to 2,619,488.47, 3,929,886.65 and 913,656.28

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Solution

The fourth proportional to 2,619,488.47, 3,929,886.65 and 913,656.28 is: 1,370,712.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619,488.47 : 3,929,886.65 = 913,656.28 : x
  2. Step 2: Convert to fraction form
    2,619,488.47/3,929,886.65 = 913,656.28/x
  3. Step 3: Cross multiply
    2,619,488.47x = 3,929,886.65 × 913,656.28
  4. Step 4: Simplify right side
    2,619,488.47x = 3,590,565,617,460.66
  5. Step 5: Solve for x
    x = 3,590,565,617,460.66/2,619,488.47
  6. Step 6: Final answer
    x = 1,370,712.51

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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.