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Finding the Fourth Proportional to 363,078.80, 544,618.20 and 346,749.20

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Solution

The fourth proportional to 363,078.80, 544,618.20 and 346,749.20 is: 520,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,078.80 : 544,618.20 = 346,749.20 : x
  2. Step 2: Convert to fraction form
    363,078.80/544,618.20 = 346,749.20/x
  3. Step 3: Cross multiply
    363,078.80x = 544,618.20 × 346,749.20
  4. Step 4: Simplify right side
    363,078.80x = 188,845,925,155.44
  5. Step 5: Solve for x
    x = 188,845,925,155.44/363,078.80
  6. Step 6: Final answer
    x = 520,123.80

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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.