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Finding the Fourth Proportional to 1,265,977.82, 1,747,052.35 and 693,054.90

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Solution

The fourth proportional to 1,265,977.82, 1,747,052.35 and 693,054.90 is: 956,417.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,977.82 : 1,747,052.35 = 693,054.90 : x
  2. Step 2: Convert to fraction form
    1,265,977.82/1,747,052.35 = 693,054.90/x
  3. Step 3: Cross multiply
    1,265,977.82x = 1,747,052.35 × 693,054.90
  4. Step 4: Simplify right side
    1,265,977.82x = 1,210,803,189,991.38
  5. Step 5: Solve for x
    x = 1,210,803,189,991.38/1,265,977.82
  6. Step 6: Final answer
    x = 956,417.38

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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.