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Finding the Fourth Proportional to 653,206.33, 979,871.12 and 253,877.67

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Solution

The fourth proportional to 653,206.33, 979,871.12 and 253,877.67 is: 380,840.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,206.33 : 979,871.12 = 253,877.67 : x
  2. Step 2: Convert to fraction form
    653,206.33/979,871.12 = 253,877.67/x
  3. Step 3: Cross multiply
    653,206.33x = 979,871.12 × 253,877.67
  4. Step 4: Simplify right side
    653,206.33x = 248,767,395,576.50
  5. Step 5: Solve for x
    x = 248,767,395,576.50/653,206.33
  6. Step 6: Final answer
    x = 380,840.45

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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.