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Finding the Fourth Proportional to 450,573.73, 621,790.11 and 243,841.70

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Solution

The fourth proportional to 450,573.73, 621,790.11 and 243,841.70 is: 336,500.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,573.73 : 621,790.11 = 243,841.70 : x
  2. Step 2: Convert to fraction form
    450,573.73/621,790.11 = 243,841.70/x
  3. Step 3: Cross multiply
    450,573.73x = 621,790.11 × 243,841.70
  4. Step 4: Simplify right side
    450,573.73x = 151,618,357,465.59
  5. Step 5: Solve for x
    x = 151,618,357,465.59/450,573.73
  6. Step 6: Final answer
    x = 336,500.66

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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.