Home / 1,189,266.66-1,641,200.01-645,407.13

Finding the Fourth Proportional to 1,189,266.66, 1,641,200.01 and 645,407.13

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Solution

The fourth proportional to 1,189,266.66, 1,641,200.01 and 645,407.13 is: 890,668.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,266.66 : 1,641,200.01 = 645,407.13 : x
  2. Step 2: Convert to fraction form
    1,189,266.66/1,641,200.01 = 645,407.13/x
  3. Step 3: Cross multiply
    1,189,266.66x = 1,641,200.01 × 645,407.13
  4. Step 4: Simplify right side
    1,189,266.66x = 1,059,242,188,210.07
  5. Step 5: Solve for x
    x = 1,059,242,188,210.07/1,189,266.66
  6. Step 6: Final answer
    x = 890,668.36

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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.