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Finding the Fourth Proportional to 403,451.40, 605,177.10 and 377,207.40

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Solution

The fourth proportional to 403,451.40, 605,177.10 and 377,207.40 is: 565,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,451.40 : 605,177.10 = 377,207.40 : x
  2. Step 2: Convert to fraction form
    403,451.40/605,177.10 = 377,207.40/x
  3. Step 3: Cross multiply
    403,451.40x = 605,177.10 × 377,207.40
  4. Step 4: Simplify right side
    403,451.40x = 228,277,280,430.54
  5. Step 5: Solve for x
    x = 228,277,280,430.54/403,451.40
  6. Step 6: Final answer
    x = 565,811.10

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1.5x scale

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.