Home / 516,336.66-712,542.21-286,931.28

Finding the Fourth Proportional to 516,336.66, 712,542.21 and 286,931.28

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Solution

The fourth proportional to 516,336.66, 712,542.21 and 286,931.28 is: 395,963.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,336.66 : 712,542.21 = 286,931.28 : x
  2. Step 2: Convert to fraction form
    516,336.66/712,542.21 = 286,931.28/x
  3. Step 3: Cross multiply
    516,336.66x = 712,542.21 × 286,931.28
  4. Step 4: Simplify right side
    516,336.66x = 204,450,648,369.33
  5. Step 5: Solve for x
    x = 204,450,648,369.33/516,336.66
  6. Step 6: Final answer
    x = 395,963.84

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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.