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Finding the Fourth Proportional to 611,113.60, 916,900.80 and 295,849.60

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Solution

The fourth proportional to 611,113.60, 916,900.80 and 295,849.60 is: 443,885.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,113.60 : 916,900.80 = 295,849.60 : x
  2. Step 2: Convert to fraction form
    611,113.60/916,900.80 = 295,849.60/x
  3. Step 3: Cross multiply
    611,113.60x = 916,900.80 × 295,849.60
  4. Step 4: Simplify right side
    611,113.60x = 271,264,734,919.68
  5. Step 5: Solve for x
    x = 271,264,734,919.68/611,113.60
  6. Step 6: Final answer
    x = 443,885.94

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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.