Home / 1,681,438.27-2,320,440.78-917,533.75

Finding the Fourth Proportional to 1,681,438.27, 2,320,440.78 and 917,533.75

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Solution

The fourth proportional to 1,681,438.27, 2,320,440.78 and 917,533.75 is: 1,266,227.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,438.27 : 2,320,440.78 = 917,533.75 : x
  2. Step 2: Convert to fraction form
    1,681,438.27/2,320,440.78 = 917,533.75/x
  3. Step 3: Cross multiply
    1,681,438.27x = 2,320,440.78 × 917,533.75
  4. Step 4: Simplify right side
    1,681,438.27x = 2,129,082,730,526.32
  5. Step 5: Solve for x
    x = 2,129,082,730,526.32/1,681,438.27
  6. Step 6: Final answer
    x = 1,266,227.12

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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.