Home / 525,913.46-726,238.58-396,630.48

Finding the Fourth Proportional to 525,913.46, 726,238.58 and 396,630.48

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Solution

The fourth proportional to 525,913.46, 726,238.58 and 396,630.48 is: 547,710.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,913.46 : 726,238.58 = 396,630.48 : x
  2. Step 2: Convert to fraction form
    525,913.46/726,238.58 = 396,630.48/x
  3. Step 3: Cross multiply
    525,913.46x = 726,238.58 × 396,630.48
  4. Step 4: Simplify right side
    525,913.46x = 288,048,356,579.92
  5. Step 5: Solve for x
    x = 288,048,356,579.92/525,913.46
  6. Step 6: Final answer
    x = 547,710.56

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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.