Home / 1,426,209.53-1,968,157.85-781,628.18

Finding the Fourth Proportional to 1,426,209.53, 1,968,157.85 and 781,628.18

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Solution

The fourth proportional to 1,426,209.53, 1,968,157.85 and 781,628.18 is: 1,078,640.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,209.53 : 1,968,157.85 = 781,628.18 : x
  2. Step 2: Convert to fraction form
    1,426,209.53/1,968,157.85 = 781,628.18/x
  3. Step 3: Cross multiply
    1,426,209.53x = 1,968,157.85 × 781,628.18
  4. Step 4: Simplify right side
    1,426,209.53x = 1,538,367,635,570.17
  5. Step 5: Solve for x
    x = 1,538,367,635,570.17/1,426,209.53
  6. Step 6: Final answer
    x = 1,078,640.70

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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.