Home / 1,209,106.56-1,668,579.84-665,249.52

Finding the Fourth Proportional to 1,209,106.56, 1,668,579.84 and 665,249.52

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Solution

The fourth proportional to 1,209,106.56, 1,668,579.84 and 665,249.52 is: 918,051.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,106.56 : 1,668,579.84 = 665,249.52 : x
  2. Step 2: Convert to fraction form
    1,209,106.56/1,668,579.84 = 665,249.52/x
  3. Step 3: Cross multiply
    1,209,106.56x = 1,668,579.84 × 665,249.52
  4. Step 4: Simplify right side
    1,209,106.56x = 1,110,021,937,641.68
  5. Step 5: Solve for x
    x = 1,110,021,937,641.68/1,209,106.56
  6. Step 6: Final answer
    x = 918,051.37

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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.