Home / 1,189,635.19-1,641,698.64-645,771.35

Finding the Fourth Proportional to 1,189,635.19, 1,641,698.64 and 645,771.35

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Solution

The fourth proportional to 1,189,635.19, 1,641,698.64 and 645,771.35 is: 891,165.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,635.19 : 1,641,698.64 = 645,771.35 : x
  2. Step 2: Convert to fraction form
    1,189,635.19/1,641,698.64 = 645,771.35/x
  3. Step 3: Cross multiply
    1,189,635.19x = 1,641,698.64 × 645,771.35
  4. Step 4: Simplify right side
    1,189,635.19x = 1,060,161,938,837.47
  5. Step 5: Solve for x
    x = 1,060,161,938,837.47/1,189,635.19
  6. Step 6: Final answer
    x = 891,165.58

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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.