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Finding the Fourth Proportional to 509,717.80, 764,730.30 and 362,261.80

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Solution

The fourth proportional to 509,717.80, 764,730.30 and 362,261.80 is: 543,501.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,717.80 : 764,730.30 = 362,261.80 : x
  2. Step 2: Convert to fraction form
    509,717.80/764,730.30 = 362,261.80/x
  3. Step 3: Cross multiply
    509,717.80x = 764,730.30 × 362,261.80
  4. Step 4: Simplify right side
    509,717.80x = 277,032,574,992.54
  5. Step 5: Solve for x
    x = 277,032,574,992.54/509,717.80
  6. Step 6: Final answer
    x = 543,501.87

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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.