Home / 1,189,553.10-1,641,584.55-645,688.80

Finding the Fourth Proportional to 1,189,553.10, 1,641,584.55 and 645,688.80

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Solution

The fourth proportional to 1,189,553.10, 1,641,584.55 and 645,688.80 is: 891,051.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,553.10 : 1,641,584.55 = 645,688.80 : x
  2. Step 2: Convert to fraction form
    1,189,553.10/1,641,584.55 = 645,688.80/x
  3. Step 3: Cross multiply
    1,189,553.10x = 1,641,584.55 × 645,688.80
  4. Step 4: Simplify right side
    1,189,553.10x = 1,059,952,758,188.04
  5. Step 5: Solve for x
    x = 1,059,952,758,188.04/1,189,553.10
  6. Step 6: Final answer
    x = 891,051.23

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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.