Home / 945,613.92-1,304,901.72-515,868.42

Finding the Fourth Proportional to 945,613.92, 1,304,901.72 and 515,868.42

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Solution

The fourth proportional to 945,613.92, 1,304,901.72 and 515,868.42 is: 711,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,613.92 : 1,304,901.72 = 515,868.42 : x
  2. Step 2: Convert to fraction form
    945,613.92/1,304,901.72 = 515,868.42/x
  3. Step 3: Cross multiply
    945,613.92x = 1,304,901.72 × 515,868.42
  4. Step 4: Simplify right side
    945,613.92x = 673,157,588,551.68
  5. Step 5: Solve for x
    x = 673,157,588,551.68/945,613.92
  6. Step 6: Final answer
    x = 711,873.60

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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.