Home / 451,947.85-623,980.20-280,048.23

Finding the Fourth Proportional to 451,947.85, 623,980.20 and 280,048.23

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Solution

The fourth proportional to 451,947.85, 623,980.20 and 280,048.23 is: 386,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,947.85 : 623,980.20 = 280,048.23 : x
  2. Step 2: Convert to fraction form
    451,947.85/623,980.20 = 280,048.23/x
  3. Step 3: Cross multiply
    451,947.85x = 623,980.20 × 280,048.23
  4. Step 4: Simplify right side
    451,947.85x = 174,744,552,904.97
  5. Step 5: Solve for x
    x = 174,744,552,904.97/451,947.85
  6. Step 6: Final answer
    x = 386,647.60

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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.