Home / 451,931.82-623,645.07-247,977.78

Finding the Fourth Proportional to 451,931.82, 623,645.07 and 247,977.78

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Solution

The fourth proportional to 451,931.82, 623,645.07 and 247,977.78 is: 342,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,931.82 : 623,645.07 = 247,977.78 : x
  2. Step 2: Convert to fraction form
    451,931.82/623,645.07 = 247,977.78/x
  3. Step 3: Cross multiply
    451,931.82x = 623,645.07 × 247,977.78
  4. Step 4: Simplify right side
    451,931.82x = 154,650,119,966.55
  5. Step 5: Solve for x
    x = 154,650,119,966.55/451,931.82
  6. Step 6: Final answer
    x = 342,197.90

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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.