Home / 945,086.70-1,417,140.45-280,152.30

Finding the Fourth Proportional to 945,086.70, 1,417,140.45 and 280,152.30

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Solution

The fourth proportional to 945,086.70, 1,417,140.45 and 280,152.30 is: 420,083.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,086.70 : 1,417,140.45 = 280,152.30 : x
  2. Step 2: Convert to fraction form
    945,086.70/1,417,140.45 = 280,152.30/x
  3. Step 3: Cross multiply
    945,086.70x = 1,417,140.45 × 280,152.30
  4. Step 4: Simplify right side
    945,086.70x = 397,015,156,490.54
  5. Step 5: Solve for x
    x = 397,015,156,490.54/945,086.70
  6. Step 6: Final answer
    x = 420,083.32

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Double scale
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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.