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Finding the Fourth Proportional to 493,272.60, 740,103.30 and 193,702.20

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Solution

The fourth proportional to 493,272.60, 740,103.30 and 193,702.20 is: 290,629.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,272.60 : 740,103.30 = 193,702.20 : x
  2. Step 2: Convert to fraction form
    493,272.60/740,103.30 = 193,702.20/x
  3. Step 3: Cross multiply
    493,272.60x = 740,103.30 × 193,702.20
  4. Step 4: Simplify right side
    493,272.60x = 143,359,637,437.26
  5. Step 5: Solve for x
    x = 143,359,637,437.26/493,272.60
  6. Step 6: Final answer
    x = 290,629.64

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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.