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Finding the Fourth Proportional to 391,505.34, 587,258.37 and 96,017.34

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Solution

The fourth proportional to 391,505.34, 587,258.37 and 96,017.34 is: 144,026.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,505.34 : 587,258.37 = 96,017.34 : x
  2. Step 2: Convert to fraction form
    391,505.34/587,258.37 = 96,017.34/x
  3. Step 3: Cross multiply
    391,505.34x = 587,258.37 × 96,017.34
  4. Step 4: Simplify right side
    391,505.34x = 56,386,986,580.14
  5. Step 5: Solve for x
    x = 56,386,986,580.14/391,505.34
  6. Step 6: Final answer
    x = 144,026.10

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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.