Home / 1,225,910.25-1,838,865.38-339,446.25

Finding the Fourth Proportional to 1,225,910.25, 1,838,865.38 and 339,446.25

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Solution

The fourth proportional to 1,225,910.25, 1,838,865.38 and 339,446.25 is: 509,169.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,910.25 : 1,838,865.38 = 339,446.25 : x
  2. Step 2: Convert to fraction form
    1,225,910.25/1,838,865.38 = 339,446.25/x
  3. Step 3: Cross multiply
    1,225,910.25x = 1,838,865.38 × 339,446.25
  4. Step 4: Simplify right side
    1,225,910.25x = 624,195,955,798.59
  5. Step 5: Solve for x
    x = 624,195,955,798.59/1,225,910.25
  6. Step 6: Final answer
    x = 509,169.38

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Half scale
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Double scale
Find fourth proportional to 1,225,911.25, 1,838,866.88 and 339,447.25
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.