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Finding the Fourth Proportional to 624,078.40, 937,039.20 and 483,995.20

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Solution

The fourth proportional to 624,078.40, 937,039.20 and 483,995.20 is: 726,707.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,078.40 : 937,039.20 = 483,995.20 : x
  2. Step 2: Convert to fraction form
    624,078.40/937,039.20 = 483,995.20/x
  3. Step 3: Cross multiply
    624,078.40x = 937,039.20 × 483,995.20
  4. Step 4: Simplify right side
    624,078.40x = 453,522,475,011.84
  5. Step 5: Solve for x
    x = 453,522,475,011.84/624,078.40
  6. Step 6: Final answer
    x = 726,707.53

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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.