Home / 1,230,240.35-1,697,726.49-686,376.59

Finding the Fourth Proportional to 1,230,240.35, 1,697,726.49 and 686,376.59

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Solution

The fourth proportional to 1,230,240.35, 1,697,726.49 and 686,376.59 is: 947,196.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,240.35 : 1,697,726.49 = 686,376.59 : x
  2. Step 2: Convert to fraction form
    1,230,240.35/1,697,726.49 = 686,376.59/x
  3. Step 3: Cross multiply
    1,230,240.35x = 1,697,726.49 × 686,376.59
  4. Step 4: Simplify right side
    1,230,240.35x = 1,165,279,707,896.32
  5. Step 5: Solve for x
    x = 1,165,279,707,896.32/1,230,240.35
  6. Step 6: Final answer
    x = 947,196.79

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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.