Home / 862,519.48-1,190,289.90-495,057.40

Finding the Fourth Proportional to 862,519.48, 1,190,289.90 and 495,057.40

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Solution

The fourth proportional to 862,519.48, 1,190,289.90 and 495,057.40 is: 683,186.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,519.48 : 1,190,289.90 = 495,057.40 : x
  2. Step 2: Convert to fraction form
    862,519.48/1,190,289.90 = 495,057.40/x
  3. Step 3: Cross multiply
    862,519.48x = 1,190,289.90 × 495,057.40
  4. Step 4: Simplify right side
    862,519.48x = 589,261,823,140.26
  5. Step 5: Solve for x
    x = 589,261,823,140.26/862,519.48
  6. Step 6: Final answer
    x = 683,186.68

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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.