Home / 1,230,476.43-1,698,054.12-686,606.25

Finding the Fourth Proportional to 1,230,476.43, 1,698,054.12 and 686,606.25

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Solution

The fourth proportional to 1,230,476.43, 1,698,054.12 and 686,606.25 is: 947,514.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,476.43 : 1,698,054.12 = 686,606.25 : x
  2. Step 2: Convert to fraction form
    1,230,476.43/1,698,054.12 = 686,606.25/x
  3. Step 3: Cross multiply
    1,230,476.43x = 1,698,054.12 × 686,606.25
  4. Step 4: Simplify right side
    1,230,476.43x = 1,165,894,571,630.25
  5. Step 5: Solve for x
    x = 1,165,894,571,630.25/1,230,476.43
  6. Step 6: Final answer
    x = 947,514.75

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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.