Home / 1,189,653.44-1,785,155.06-642,539.08

Finding the Fourth Proportional to 1,189,653.44, 1,785,155.06 and 642,539.08

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Solution

The fourth proportional to 1,189,653.44, 1,785,155.06 and 642,539.08 is: 964,173.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,653.44 : 1,785,155.06 = 642,539.08 : x
  2. Step 2: Convert to fraction form
    1,189,653.44/1,785,155.06 = 642,539.08/x
  3. Step 3: Cross multiply
    1,189,653.44x = 1,785,155.06 × 642,539.08
  4. Step 4: Simplify right side
    1,189,653.44x = 1,147,031,889,909.74
  5. Step 5: Solve for x
    x = 1,147,031,889,909.74/1,189,653.44
  6. Step 6: Final answer
    x = 964,173.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.