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Finding the Fourth Proportional to 670,240.80, 936,237.60 and 670,240.80

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Solution

The fourth proportional to 670,240.80, 936,237.60 and 670,240.80 is: 936,237.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,240.80 : 936,237.60 = 670,240.80 : x
  2. Step 2: Convert to fraction form
    670,240.80/936,237.60 = 670,240.80/x
  3. Step 3: Cross multiply
    670,240.80x = 936,237.60 × 670,240.80
  4. Step 4: Simplify right side
    670,240.80x = 627,504,638,014.08
  5. Step 5: Solve for x
    x = 627,504,638,014.08/670,240.80
  6. Step 6: Final answer
    x = 936,237.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.