Home / 451,951.18-623,984.80-280,051.56

Finding the Fourth Proportional to 451,951.18, 623,984.80 and 280,051.56

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Solution

The fourth proportional to 451,951.18, 623,984.80 and 280,051.56 is: 386,652.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,951.18 : 623,984.80 = 280,051.56 : x
  2. Step 2: Convert to fraction form
    451,951.18/623,984.80 = 280,051.56/x
  3. Step 3: Cross multiply
    451,951.18x = 623,984.80 × 280,051.56
  4. Step 4: Simplify right side
    451,951.18x = 174,747,916,656.29
  5. Step 5: Solve for x
    x = 174,747,916,656.29/451,951.18
  6. Step 6: Final answer
    x = 386,652.20

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1.5x scale

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.