Home / 1,230,338.93-1,697,702.96-686,395.58

Finding the Fourth Proportional to 1,230,338.93, 1,697,702.96 and 686,395.58

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Solution

The fourth proportional to 1,230,338.93, 1,697,702.96 and 686,395.58 is: 947,133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,338.93 : 1,697,702.96 = 686,395.58 : x
  2. Step 2: Convert to fraction form
    1,230,338.93/1,697,702.96 = 686,395.58/x
  3. Step 3: Cross multiply
    1,230,338.93x = 1,697,702.96 × 686,395.58
  4. Step 4: Simplify right side
    1,230,338.93x = 1,165,295,801,124.39
  5. Step 5: Solve for x
    x = 1,165,295,801,124.39/1,230,338.93
  6. Step 6: Final answer
    x = 947,133.98

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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.