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Finding the Fourth Proportional to 606,325.40, 911,456.40 and 430,053.20

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Solution

The fourth proportional to 606,325.40, 911,456.40 and 430,053.20 is: 646,475.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,325.40 : 911,456.40 = 430,053.20 : x
  2. Step 2: Convert to fraction form
    606,325.40/911,456.40 = 430,053.20/x
  3. Step 3: Cross multiply
    606,325.40x = 911,456.40 × 430,053.20
  4. Step 4: Simplify right side
    606,325.40x = 391,974,741,480.48
  5. Step 5: Solve for x
    x = 391,974,741,480.48/606,325.40
  6. Step 6: Final answer
    x = 646,475.87

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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.