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Finding the Fourth Proportional to 346,343.70, 477,949.76 and 193,384.50

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Solution

The fourth proportional to 346,343.70, 477,949.76 and 193,384.50 is: 266,868.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,343.70 : 477,949.76 = 193,384.50 : x
  2. Step 2: Convert to fraction form
    346,343.70/477,949.76 = 193,384.50/x
  3. Step 3: Cross multiply
    346,343.70x = 477,949.76 × 193,384.50
  4. Step 4: Simplify right side
    346,343.70x = 92,428,075,362.72
  5. Step 5: Solve for x
    x = 92,428,075,362.72/346,343.70
  6. Step 6: Final answer
    x = 266,868.07

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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.