Home / 946,125.72-1,305,653.07-516,405.81

Finding the Fourth Proportional to 946,125.72, 1,305,653.07 and 516,405.81

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Solution

The fourth proportional to 946,125.72, 1,305,653.07 and 516,405.81 is: 712,639.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,125.72 : 1,305,653.07 = 516,405.81 : x
  2. Step 2: Convert to fraction form
    946,125.72/1,305,653.07 = 516,405.81/x
  3. Step 3: Cross multiply
    946,125.72x = 1,305,653.07 × 516,405.81
  4. Step 4: Simplify right side
    946,125.72x = 674,246,831,192.34
  5. Step 5: Solve for x
    x = 674,246,831,192.34/946,125.72
  6. Step 6: Final answer
    x = 712,639.79

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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.