Home / 289,986.30-434,979.45-185,010.30

Finding the Fourth Proportional to 289,986.30, 434,979.45 and 185,010.30

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Solution

The fourth proportional to 289,986.30, 434,979.45 and 185,010.30 is: 277,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,986.30 : 434,979.45 = 185,010.30 : x
  2. Step 2: Convert to fraction form
    289,986.30/434,979.45 = 185,010.30/x
  3. Step 3: Cross multiply
    289,986.30x = 434,979.45 × 185,010.30
  4. Step 4: Simplify right side
    289,986.30x = 80,475,678,538.34
  5. Step 5: Solve for x
    x = 80,475,678,538.34/289,986.30
  6. Step 6: Final answer
    x = 277,515.45

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Similar ratio
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1.5x scale

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.