Home / 699,726.47-965,582.55-393,815.58

Finding the Fourth Proportional to 699,726.47, 965,582.55 and 393,815.58

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Solution

The fourth proportional to 699,726.47, 965,582.55 and 393,815.58 is: 543,443.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,726.47 : 965,582.55 = 393,815.58 : x
  2. Step 2: Convert to fraction form
    699,726.47/965,582.55 = 393,815.58/x
  3. Step 3: Cross multiply
    699,726.47x = 965,582.55 × 393,815.58
  4. Step 4: Simplify right side
    699,726.47x = 380,261,451,966.13
  5. Step 5: Solve for x
    x = 380,261,451,966.13/699,726.47
  6. Step 6: Final answer
    x = 543,443.00

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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.