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Finding the Fourth Proportional to 407,729.40, 610,427.70 and 250,265.40

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Solution

The fourth proportional to 407,729.40, 610,427.70 and 250,265.40 is: 374,682.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,729.40 : 610,427.70 = 250,265.40 : x
  2. Step 2: Convert to fraction form
    407,729.40/610,427.70 = 250,265.40/x
  3. Step 3: Cross multiply
    407,729.40x = 610,427.70 × 250,265.40
  4. Step 4: Simplify right side
    407,729.40x = 152,768,932,511.58
  5. Step 5: Solve for x
    x = 152,768,932,511.58/407,729.40
  6. Step 6: Final answer
    x = 374,682.16

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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.