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Finding the Fourth Proportional to 885,821.40, 1,237,350.60 and 885,821.40

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Solution

The fourth proportional to 885,821.40, 1,237,350.60 and 885,821.40 is: 1,237,350.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,821.40 : 1,237,350.60 = 885,821.40 : x
  2. Step 2: Convert to fraction form
    885,821.40/1,237,350.60 = 885,821.40/x
  3. Step 3: Cross multiply
    885,821.40x = 1,237,350.60 × 885,821.40
  4. Step 4: Simplify right side
    885,821.40x = 1,096,071,640,782.84
  5. Step 5: Solve for x
    x = 1,096,071,640,782.84/885,821.40
  6. Step 6: Final answer
    x = 1,237,350.60

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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.