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Finding the Fourth Proportional to 450,363.83, 621,496.46 and 256,765.38

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Solution

The fourth proportional to 450,363.83, 621,496.46 and 256,765.38 is: 354,333.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,363.83 : 621,496.46 = 256,765.38 : x
  2. Step 2: Convert to fraction form
    450,363.83/621,496.46 = 256,765.38/x
  3. Step 3: Cross multiply
    450,363.83x = 621,496.46 × 256,765.38
  4. Step 4: Simplify right side
    450,363.83x = 159,578,773,436.73
  5. Step 5: Solve for x
    x = 159,578,773,436.73/450,363.83
  6. Step 6: Final answer
    x = 354,333.02

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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.