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Finding the Fourth Proportional to 463,710.76, 639,944.82 and 259,749.76

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Solution

The fourth proportional to 463,710.76, 639,944.82 and 259,749.76 is: 358,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,710.76 : 639,944.82 = 259,749.76 : x
  2. Step 2: Convert to fraction form
    463,710.76/639,944.82 = 259,749.76/x
  3. Step 3: Cross multiply
    463,710.76x = 639,944.82 × 259,749.76
  4. Step 4: Simplify right side
    463,710.76x = 166,225,513,408.24
  5. Step 5: Solve for x
    x = 166,225,513,408.24/463,710.76
  6. Step 6: Final answer
    x = 358,468.10

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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.