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Finding the Fourth Proportional to 1,248,563, 1,723,016.94 and 712,019

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Solution

The fourth proportional to 1,248,563, 1,723,016.94 and 712,019 is: 982,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,563 : 1,723,016.94 = 712,019 : x
  2. Step 2: Convert to fraction form
    1,248,563/1,723,016.94 = 712,019/x
  3. Step 3: Cross multiply
    1,248,563x = 1,723,016.94 × 712,019
  4. Step 4: Simplify right side
    1,248,563x = 1,226,820,798,601.86
  5. Step 5: Solve for x
    x = 1,226,820,798,601.86/1,248,563
  6. Step 6: Final answer
    x = 982,586.22

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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.