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Finding the Fourth Proportional to 1,248,561, 1,723,014.18 and 712,017

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Solution

The fourth proportional to 1,248,561, 1,723,014.18 and 712,017 is: 982,583.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,561 : 1,723,014.18 = 712,017 : x
  2. Step 2: Convert to fraction form
    1,248,561/1,723,014.18 = 712,017/x
  3. Step 3: Cross multiply
    1,248,561x = 1,723,014.18 × 712,017
  4. Step 4: Simplify right side
    1,248,561x = 1,226,815,387,401.06
  5. Step 5: Solve for x
    x = 1,226,815,387,401.06/1,248,561
  6. Step 6: Final answer
    x = 982,583.46

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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.