Home / 516,043.32-712,116.14-286,615.28

Finding the Fourth Proportional to 516,043.32, 712,116.14 and 286,615.28

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Solution

The fourth proportional to 516,043.32, 712,116.14 and 286,615.28 is: 395,515.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,043.32 : 712,116.14 = 286,615.28 : x
  2. Step 2: Convert to fraction form
    516,043.32/712,116.14 = 286,615.28/x
  3. Step 3: Cross multiply
    516,043.32x = 712,116.14 × 286,615.28
  4. Step 4: Simplify right side
    516,043.32x = 204,103,366,858.62
  5. Step 5: Solve for x
    x = 204,103,366,858.62/516,043.32
  6. Step 6: Final answer
    x = 395,515.96

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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.