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Finding the Fourth Proportional to 555,748.14, 831,338.64 and 443,647.30

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Solution

The fourth proportional to 555,748.14, 831,338.64 and 443,647.30 is: 663,648.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,748.14 : 831,338.64 = 443,647.30 : x
  2. Step 2: Convert to fraction form
    555,748.14/831,338.64 = 443,647.30/x
  3. Step 3: Cross multiply
    555,748.14x = 831,338.64 × 443,647.30
  4. Step 4: Simplify right side
    555,748.14x = 368,821,143,021.67
  5. Step 5: Solve for x
    x = 368,821,143,021.67/555,748.14
  6. Step 6: Final answer
    x = 663,648.00

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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.