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Finding the Fourth Proportional to 888,969.76, 1,226,769.60 and 481,062.88

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Solution

The fourth proportional to 888,969.76, 1,226,769.60 and 481,062.88 is: 663,862.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,969.76 : 1,226,769.60 = 481,062.88 : x
  2. Step 2: Convert to fraction form
    888,969.76/1,226,769.60 = 481,062.88/x
  3. Step 3: Cross multiply
    888,969.76x = 1,226,769.60 × 481,062.88
  4. Step 4: Simplify right side
    888,969.76x = 590,153,316,872.45
  5. Step 5: Solve for x
    x = 590,153,316,872.45/888,969.76
  6. Step 6: Final answer
    x = 663,862.08

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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.