Home / 1,681,561.08-2,320,603.31-917,663.85

Finding the Fourth Proportional to 1,681,561.08, 2,320,603.31 and 917,663.85

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Solution

The fourth proportional to 1,681,561.08, 2,320,603.31 and 917,663.85 is: 1,266,402.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,561.08 : 2,320,603.31 = 917,663.85 : x
  2. Step 2: Convert to fraction form
    1,681,561.08/2,320,603.31 = 917,663.85/x
  3. Step 3: Cross multiply
    1,681,561.08x = 2,320,603.31 × 917,663.85
  4. Step 4: Simplify right side
    1,681,561.08x = 2,129,533,763,189.02
  5. Step 5: Solve for x
    x = 2,129,533,763,189.02/1,681,561.08
  6. Step 6: Final answer
    x = 1,266,402.86

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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.