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Finding the Fourth Proportional to 401,511.01, 554,131.47 and 240,366.01

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Solution

The fourth proportional to 401,511.01, 554,131.47 and 240,366.01 is: 331,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,511.01 : 554,131.47 = 240,366.01 : x
  2. Step 2: Convert to fraction form
    401,511.01/554,131.47 = 240,366.01/x
  3. Step 3: Cross multiply
    401,511.01x = 554,131.47 × 240,366.01
  4. Step 4: Simplify right side
    401,511.01x = 133,194,370,459.34
  5. Step 5: Solve for x
    x = 133,194,370,459.34/401,511.01
  6. Step 6: Final answer
    x = 331,732.80

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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.