Home / 724,336.19-999,581.46-397,641.06

Finding the Fourth Proportional to 724,336.19, 999,581.46 and 397,641.06

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Solution

The fourth proportional to 724,336.19, 999,581.46 and 397,641.06 is: 548,743.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,336.19 : 999,581.46 = 397,641.06 : x
  2. Step 2: Convert to fraction form
    724,336.19/999,581.46 = 397,641.06/x
  3. Step 3: Cross multiply
    724,336.19x = 999,581.46 × 397,641.06
  4. Step 4: Simplify right side
    724,336.19x = 397,474,631,310.75
  5. Step 5: Solve for x
    x = 397,474,631,310.75/724,336.19
  6. Step 6: Final answer
    x = 548,743.30

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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.