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Finding the Fourth Proportional to 587,115.70, 880,673.55 and 213,090.10

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Solution

The fourth proportional to 587,115.70, 880,673.55 and 213,090.10 is: 319,635.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,115.70 : 880,673.55 = 213,090.10 : x
  2. Step 2: Convert to fraction form
    587,115.70/880,673.55 = 213,090.10/x
  3. Step 3: Cross multiply
    587,115.70x = 880,673.55 × 213,090.10
  4. Step 4: Simplify right side
    587,115.70x = 187,662,814,836.86
  5. Step 5: Solve for x
    x = 187,662,814,836.86/587,115.70
  6. Step 6: Final answer
    x = 319,635.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.