Home / 945,410.40-1,304,618.40-515,687.04

Finding the Fourth Proportional to 945,410.40, 1,304,618.40 and 515,687.04

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Solution

The fourth proportional to 945,410.40, 1,304,618.40 and 515,687.04 is: 711,621.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,410.40 : 1,304,618.40 = 515,687.04 : x
  2. Step 2: Convert to fraction form
    945,410.40/1,304,618.40 = 515,687.04/x
  3. Step 3: Cross multiply
    945,410.40x = 1,304,618.40 × 515,687.04
  4. Step 4: Simplify right side
    945,410.40x = 672,774,801,025.54
  5. Step 5: Solve for x
    x = 672,774,801,025.54/945,410.40
  6. Step 6: Final answer
    x = 711,621.96

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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.