Home / 1,275,878.79-1,914,092.78-636,526.35

Finding the Fourth Proportional to 1,275,878.79, 1,914,092.78 and 636,526.35

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Solution

The fourth proportional to 1,275,878.79, 1,914,092.78 and 636,526.35 is: 954,926.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,878.79 : 1,914,092.78 = 636,526.35 : x
  2. Step 2: Convert to fraction form
    1,275,878.79/1,914,092.78 = 636,526.35/x
  3. Step 3: Cross multiply
    1,275,878.79x = 1,914,092.78 × 636,526.35
  4. Step 4: Simplify right side
    1,275,878.79x = 1,218,370,487,632.12
  5. Step 5: Solve for x
    x = 1,218,370,487,632.12/1,275,878.79
  6. Step 6: Final answer
    x = 954,926.52

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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.