Home / 1,912,176.80-2,638,703.81-1,052,569.16

Finding the Fourth Proportional to 1,912,176.80, 2,638,703.81 and 1,052,569.16

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Solution

The fourth proportional to 1,912,176.80, 2,638,703.81 and 1,052,569.16 is: 1,452,490.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,176.80 : 2,638,703.81 = 1,052,569.16 : x
  2. Step 2: Convert to fraction form
    1,912,176.80/2,638,703.81 = 1,052,569.16/x
  3. Step 3: Cross multiply
    1,912,176.80x = 2,638,703.81 × 1,052,569.16
  4. Step 4: Simplify right side
    1,912,176.80x = 2,777,418,242,218.40
  5. Step 5: Solve for x
    x = 2,777,418,242,218.40/1,912,176.80
  6. Step 6: Final answer
    x = 1,452,490.30

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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.