Home / 516,326.76-712,540.08-286,905.24

Finding the Fourth Proportional to 516,326.76, 712,540.08 and 286,905.24

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Solution

The fourth proportional to 516,326.76, 712,540.08 and 286,905.24 is: 395,934.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,326.76 : 712,540.08 = 286,905.24 : x
  2. Step 2: Convert to fraction form
    516,326.76/712,540.08 = 286,905.24/x
  3. Step 3: Cross multiply
    516,326.76x = 712,540.08 × 286,905.24
  4. Step 4: Simplify right side
    516,326.76x = 204,431,482,662.02
  5. Step 5: Solve for x
    x = 204,431,482,662.02/516,326.76
  6. Step 6: Final answer
    x = 395,934.32

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Half scale
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Double scale
Find fourth proportional to 516,327.76, 712,541.46 and 286,906.24
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.