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Finding the Fourth Proportional to 552,283.52, 762,155.70 and 307,271.88

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Solution

The fourth proportional to 552,283.52, 762,155.70 and 307,271.88 is: 424,037.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,283.52 : 762,155.70 = 307,271.88 : x
  2. Step 2: Convert to fraction form
    552,283.52/762,155.70 = 307,271.88/x
  3. Step 3: Cross multiply
    552,283.52x = 762,155.70 × 307,271.88
  4. Step 4: Simplify right side
    552,283.52x = 234,189,013,639.45
  5. Step 5: Solve for x
    x = 234,189,013,639.45/552,283.52
  6. Step 6: Final answer
    x = 424,037.67

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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.