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Finding the Fourth Proportional to 443,491.93, 611,299.87 and 346,526.29

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Solution

The fourth proportional to 443,491.93, 611,299.87 and 346,526.29 is: 477,644.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,491.93 : 611,299.87 = 346,526.29 : x
  2. Step 2: Convert to fraction form
    443,491.93/611,299.87 = 346,526.29/x
  3. Step 3: Cross multiply
    443,491.93x = 611,299.87 × 346,526.29
  4. Step 4: Simplify right side
    443,491.93x = 211,831,476,028.58
  5. Step 5: Solve for x
    x = 211,831,476,028.58/443,491.93
  6. Step 6: Final answer
    x = 477,644.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.