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Finding the Fourth Proportional to 876,837.60, 1,228,816.80 and 876,837.60

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Solution

The fourth proportional to 876,837.60, 1,228,816.80 and 876,837.60 is: 1,228,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,837.60 : 1,228,816.80 = 876,837.60 : x
  2. Step 2: Convert to fraction form
    876,837.60/1,228,816.80 = 876,837.60/x
  3. Step 3: Cross multiply
    876,837.60x = 1,228,816.80 × 876,837.60
  4. Step 4: Simplify right side
    876,837.60x = 1,077,472,773,751.68
  5. Step 5: Solve for x
    x = 1,077,472,773,751.68/876,837.60
  6. Step 6: Final answer
    x = 1,228,816.80

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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.