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Finding the Fourth Proportional to 401,697.35, 554,359.66 and 240,521.59

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Solution

The fourth proportional to 401,697.35, 554,359.66 and 240,521.59 is: 331,930.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,697.35 : 554,359.66 = 240,521.59 : x
  2. Step 2: Convert to fraction form
    401,697.35/554,359.66 = 240,521.59/x
  3. Step 3: Cross multiply
    401,697.35x = 554,359.66 × 240,521.59
  4. Step 4: Simplify right side
    401,697.35x = 133,335,464,867.86
  5. Step 5: Solve for x
    x = 133,335,464,867.86/401,697.35
  6. Step 6: Final answer
    x = 331,930.16

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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.