Home / 1,281,653.20-1,922,479.80-618,101.20

Finding the Fourth Proportional to 1,281,653.20, 1,922,479.80 and 618,101.20

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Solution

The fourth proportional to 1,281,653.20, 1,922,479.80 and 618,101.20 is: 927,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,653.20 : 1,922,479.80 = 618,101.20 : x
  2. Step 2: Convert to fraction form
    1,281,653.20/1,922,479.80 = 618,101.20/x
  3. Step 3: Cross multiply
    1,281,653.20x = 1,922,479.80 × 618,101.20
  4. Step 4: Simplify right side
    1,281,653.20x = 1,188,287,071,355.76
  5. Step 5: Solve for x
    x = 1,188,287,071,355.76/1,281,653.20
  6. Step 6: Final answer
    x = 927,151.80

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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.