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Finding the Fourth Proportional to 292,956.20, 439,607.10 and 193,404.20

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Solution

The fourth proportional to 292,956.20, 439,607.10 and 193,404.20 is: 290,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,956.20 : 439,607.10 = 193,404.20 : x
  2. Step 2: Convert to fraction form
    292,956.20/439,607.10 = 193,404.20/x
  3. Step 3: Cross multiply
    292,956.20x = 439,607.10 × 193,404.20
  4. Step 4: Simplify right side
    292,956.20x = 85,021,859,489.82
  5. Step 5: Solve for x
    x = 85,021,859,489.82/292,956.20
  6. Step 6: Final answer
    x = 290,220.38

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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.