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Finding the Fourth Proportional to 401,549.64, 602,380.04 and 135,386.27

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Solution

The fourth proportional to 401,549.64, 602,380.04 and 135,386.27 is: 203,098.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,549.64 : 602,380.04 = 135,386.27 : x
  2. Step 2: Convert to fraction form
    401,549.64/602,380.04 = 135,386.27/x
  3. Step 3: Cross multiply
    401,549.64x = 602,380.04 × 135,386.27
  4. Step 4: Simplify right side
    401,549.64x = 81,553,983,049.22
  5. Step 5: Solve for x
    x = 81,553,983,049.22/401,549.64
  6. Step 6: Final answer
    x = 203,098.14

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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.