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Finding the Fourth Proportional to 355,434.60, 532,374.30 and 214,948.20

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Solution

The fourth proportional to 355,434.60, 532,374.30 and 214,948.20 is: 321,952.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,434.60 : 532,374.30 = 214,948.20 : x
  2. Step 2: Convert to fraction form
    355,434.60/532,374.30 = 214,948.20/x
  3. Step 3: Cross multiply
    355,434.60x = 532,374.30 × 214,948.20
  4. Step 4: Simplify right side
    355,434.60x = 114,432,897,511.26
  5. Step 5: Solve for x
    x = 114,432,897,511.26/355,434.60
  6. Step 6: Final answer
    x = 321,952.05

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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.