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Finding the Fourth Proportional to 401,562.40, 554,063.18 and 240,356.20

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Solution

The fourth proportional to 401,562.40, 554,063.18 and 240,356.20 is: 331,635.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,562.40 : 554,063.18 = 240,356.20 : x
  2. Step 2: Convert to fraction form
    401,562.40/554,063.18 = 240,356.20/x
  3. Step 3: Cross multiply
    401,562.40x = 554,063.18 × 240,356.20
  4. Step 4: Simplify right side
    401,562.40x = 133,172,520,504.72
  5. Step 5: Solve for x
    x = 133,172,520,504.72/401,562.40
  6. Step 6: Final answer
    x = 331,635.93

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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.