Home / 451,933.60-623,640.72-247,943.20

Finding the Fourth Proportional to 451,933.60, 623,640.72 and 247,943.20

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Solution

The fourth proportional to 451,933.60, 623,640.72 and 247,943.20 is: 342,146.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,933.60 : 623,640.72 = 247,943.20 : x
  2. Step 2: Convert to fraction form
    451,933.60/623,640.72 = 247,943.20/x
  3. Step 3: Cross multiply
    451,933.60x = 623,640.72 × 247,943.20
  4. Step 4: Simplify right side
    451,933.60x = 154,627,475,767.10
  5. Step 5: Solve for x
    x = 154,627,475,767.10/451,933.60
  6. Step 6: Final answer
    x = 342,146.45

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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.