Home / 1,386,818.91-1,913,773.23-774,976.68

Finding the Fourth Proportional to 1,386,818.91, 1,913,773.23 and 774,976.68

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Solution

The fourth proportional to 1,386,818.91, 1,913,773.23 and 774,976.68 is: 1,069,447.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,818.91 : 1,913,773.23 = 774,976.68 : x
  2. Step 2: Convert to fraction form
    1,386,818.91/1,913,773.23 = 774,976.68/x
  3. Step 3: Cross multiply
    1,386,818.91x = 1,913,773.23 × 774,976.68
  4. Step 4: Simplify right side
    1,386,818.91x = 1,483,129,624,058.28
  5. Step 5: Solve for x
    x = 1,483,129,624,058.28/1,386,818.91
  6. Step 6: Final answer
    x = 1,069,447.22

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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.