Home / 923,103.12-1,273,946.36-515,284.44

Finding the Fourth Proportional to 923,103.12, 1,273,946.36 and 515,284.44

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Solution

The fourth proportional to 923,103.12, 1,273,946.36 and 515,284.44 is: 711,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,103.12 : 1,273,946.36 = 515,284.44 : x
  2. Step 2: Convert to fraction form
    923,103.12/1,273,946.36 = 515,284.44/x
  3. Step 3: Cross multiply
    923,103.12x = 1,273,946.36 × 515,284.44
  4. Step 4: Simplify right side
    923,103.12x = 656,444,736,702.64
  5. Step 5: Solve for x
    x = 656,444,736,702.64/923,103.12
  6. Step 6: Final answer
    x = 711,128.28

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1.5x scale

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.