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Finding the Fourth Proportional to 395,652.60, 546,248.21 and 304,836.21

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Solution

The fourth proportional to 395,652.60, 546,248.21 and 304,836.21 is: 420,864.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,652.60 : 546,248.21 = 304,836.21 : x
  2. Step 2: Convert to fraction form
    395,652.60/546,248.21 = 304,836.21/x
  3. Step 3: Cross multiply
    395,652.60x = 546,248.21 × 304,836.21
  4. Step 4: Simplify right side
    395,652.60x = 166,516,232,531.50
  5. Step 5: Solve for x
    x = 166,516,232,531.50/395,652.60
  6. Step 6: Final answer
    x = 420,864.75

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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.