Home / 1,386,426.77-1,913,233.69-774,584.13

Finding the Fourth Proportional to 1,386,426.77, 1,913,233.69 and 774,584.13

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Solution

The fourth proportional to 1,386,426.77, 1,913,233.69 and 774,584.13 is: 1,068,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,426.77 : 1,913,233.69 = 774,584.13 : x
  2. Step 2: Convert to fraction form
    1,386,426.77/1,913,233.69 = 774,584.13/x
  3. Step 3: Cross multiply
    1,386,426.77x = 1,913,233.69 × 774,584.13
  4. Step 4: Simplify right side
    1,386,426.77x = 1,481,960,445,625.63
  5. Step 5: Solve for x
    x = 1,481,960,445,625.63/1,386,426.77
  6. Step 6: Final answer
    x = 1,068,906.40

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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.