Home / 1,189,739.04-1,641,666.65-680,343

Finding the Fourth Proportional to 1,189,739.04, 1,641,666.65 and 680,343

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Solution

The fourth proportional to 1,189,739.04, 1,641,666.65 and 680,343 is: 938,774.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,739.04 : 1,641,666.65 = 680,343 : x
  2. Step 2: Convert to fraction form
    1,189,739.04/1,641,666.65 = 680,343/x
  3. Step 3: Cross multiply
    1,189,739.04x = 1,641,666.65 × 680,343
  4. Step 4: Simplify right side
    1,189,739.04x = 1,116,896,410,259.24
  5. Step 5: Solve for x
    x = 1,116,896,410,259.24/1,189,739.04
  6. Step 6: Final answer
    x = 938,774.28

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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.