Home / 272,555.10-408,905.55-193,823.10

Finding the Fourth Proportional to 272,555.10, 408,905.55 and 193,823.10

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Solution

The fourth proportional to 272,555.10, 408,905.55 and 193,823.10 is: 290,786.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,555.10 : 408,905.55 = 193,823.10 : x
  2. Step 2: Convert to fraction form
    272,555.10/408,905.55 = 193,823.10/x
  3. Step 3: Cross multiply
    272,555.10x = 408,905.55 × 193,823.10
  4. Step 4: Simplify right side
    272,555.10x = 79,255,341,308.21
  5. Step 5: Solve for x
    x = 79,255,341,308.21/272,555.10
  6. Step 6: Final answer
    x = 290,786.49

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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.