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Finding the Fourth Proportional to 411,041.73, 615,012.21 and 242,653.65

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Solution

The fourth proportional to 411,041.73, 615,012.21 and 242,653.65 is: 363,065.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,041.73 : 615,012.21 = 242,653.65 : x
  2. Step 2: Convert to fraction form
    411,041.73/615,012.21 = 242,653.65/x
  3. Step 3: Cross multiply
    411,041.73x = 615,012.21 × 242,653.65
  4. Step 4: Simplify right side
    411,041.73x = 149,234,957,551.07
  5. Step 5: Solve for x
    x = 149,234,957,551.07/411,041.73
  6. Step 6: Final answer
    x = 363,065.22

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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.