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Finding the Fourth Proportional to 1,709,907.13, 2,359,741.31 and 945,947.53

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Solution

The fourth proportional to 1,709,907.13, 2,359,741.31 and 945,947.53 is: 1,305,446.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709,907.13 : 2,359,741.31 = 945,947.53 : x
  2. Step 2: Convert to fraction form
    1,709,907.13/2,359,741.31 = 945,947.53/x
  3. Step 3: Cross multiply
    1,709,907.13x = 2,359,741.31 × 945,947.53
  4. Step 4: Simplify right side
    1,709,907.13x = 2,232,191,463,633.46
  5. Step 5: Solve for x
    x = 2,232,191,463,633.46/1,709,907.13
  6. Step 6: Final answer
    x = 1,305,446.02

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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.