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Finding the Fourth Proportional to 288,925.60, 433,388.40 and 194,447.20

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Solution

The fourth proportional to 288,925.60, 433,388.40 and 194,447.20 is: 291,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,925.60 : 433,388.40 = 194,447.20 : x
  2. Step 2: Convert to fraction form
    288,925.60/433,388.40 = 194,447.20/x
  3. Step 3: Cross multiply
    288,925.60x = 433,388.40 × 194,447.20
  4. Step 4: Simplify right side
    288,925.60x = 84,271,160,892.48
  5. Step 5: Solve for x
    x = 84,271,160,892.48/288,925.60
  6. Step 6: Final answer
    x = 291,670.80

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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.