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Finding the Fourth Proportional to 401,276.68, 601,490.64 and 148,394.68

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Solution

The fourth proportional to 401,276.68, 601,490.64 and 148,394.68 is: 222,435.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,276.68 : 601,490.64 = 148,394.68 : x
  2. Step 2: Convert to fraction form
    401,276.68/601,490.64 = 148,394.68/x
  3. Step 3: Cross multiply
    401,276.68x = 601,490.64 × 148,394.68
  4. Step 4: Simplify right side
    401,276.68x = 89,258,011,045.80
  5. Step 5: Solve for x
    x = 89,258,011,045.80/401,276.68
  6. Step 6: Final answer
    x = 222,435.08

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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.