Home / 516,015.24-712,119.04-286,576.36

Finding the Fourth Proportional to 516,015.24, 712,119.04 and 286,576.36

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Solution

The fourth proportional to 516,015.24, 712,119.04 and 286,576.36 is: 395,485.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,015.24 : 712,119.04 = 286,576.36 : x
  2. Step 2: Convert to fraction form
    516,015.24/712,119.04 = 286,576.36/x
  3. Step 3: Cross multiply
    516,015.24x = 712,119.04 × 286,576.36
  4. Step 4: Simplify right side
    516,015.24x = 204,076,482,369.89
  5. Step 5: Solve for x
    x = 204,076,482,369.89/516,015.24
  6. Step 6: Final answer
    x = 395,485.38

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Double scale
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Similar ratio
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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.