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Finding the Fourth Proportional to 508,957.36, 702,633.83 and 392,416.27

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Solution

The fourth proportional to 508,957.36, 702,633.83 and 392,416.27 is: 541,744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,957.36 : 702,633.83 = 392,416.27 : x
  2. Step 2: Convert to fraction form
    508,957.36/702,633.83 = 392,416.27/x
  3. Step 3: Cross multiply
    508,957.36x = 702,633.83 × 392,416.27
  4. Step 4: Simplify right side
    508,957.36x = 275,724,943,025.75
  5. Step 5: Solve for x
    x = 275,724,943,025.75/508,957.36
  6. Step 6: Final answer
    x = 541,744.68

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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.