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Finding the Fourth Proportional to 890,656.56, 1,229,239.80 and 701,097.12

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Solution

The fourth proportional to 890,656.56, 1,229,239.80 and 701,097.12 is: 967,619.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,656.56 : 1,229,239.80 = 701,097.12 : x
  2. Step 2: Convert to fraction form
    890,656.56/1,229,239.80 = 701,097.12/x
  3. Step 3: Cross multiply
    890,656.56x = 1,229,239.80 × 701,097.12
  4. Step 4: Simplify right side
    890,656.56x = 861,816,483,569.38
  5. Step 5: Solve for x
    x = 861,816,483,569.38/890,656.56
  6. Step 6: Final answer
    x = 967,619.31

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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.