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Finding the Fourth Proportional to 448,622.94, 619,082.55 and 247,418.94

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Solution

The fourth proportional to 448,622.94, 619,082.55 and 247,418.94 is: 341,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,622.94 : 619,082.55 = 247,418.94 : x
  2. Step 2: Convert to fraction form
    448,622.94/619,082.55 = 247,418.94/x
  3. Step 3: Cross multiply
    448,622.94x = 619,082.55 × 247,418.94
  4. Step 4: Simplify right side
    448,622.94x = 153,172,748,293.50
  5. Step 5: Solve for x
    x = 153,172,748,293.50/448,622.94
  6. Step 6: Final answer
    x = 341,428.70

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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.