Home / 1,189,317.60-1,641,259.13-645,453.26

Finding the Fourth Proportional to 1,189,317.60, 1,641,259.13 and 645,453.26

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Solution

The fourth proportional to 1,189,317.60, 1,641,259.13 and 645,453.26 is: 890,725.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,317.60 : 1,641,259.13 = 645,453.26 : x
  2. Step 2: Convert to fraction form
    1,189,317.60/1,641,259.13 = 645,453.26/x
  3. Step 3: Cross multiply
    1,189,317.60x = 1,641,259.13 × 645,453.26
  4. Step 4: Simplify right side
    1,189,317.60x = 1,059,356,044,529.70
  5. Step 5: Solve for x
    x = 1,059,356,044,529.70/1,189,317.60
  6. Step 6: Final answer
    x = 890,725.95

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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.