Home / 1,230,675.27-1,698,417-686,917.19

Finding the Fourth Proportional to 1,230,675.27, 1,698,417 and 686,917.19

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Solution

The fourth proportional to 1,230,675.27, 1,698,417 and 686,917.19 is: 947,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,675.27 : 1,698,417 = 686,917.19 : x
  2. Step 2: Convert to fraction form
    1,230,675.27/1,698,417 = 686,917.19/x
  3. Step 3: Cross multiply
    1,230,675.27x = 1,698,417 × 686,917.19
  4. Step 4: Simplify right side
    1,230,675.27x = 1,166,671,824,596.15
  5. Step 5: Solve for x
    x = 1,166,671,824,596.15/1,230,675.27
  6. Step 6: Final answer
    x = 947,993.23

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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.