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Finding the Fourth Proportional to 401,472.40, 601,698.30 and 164,547.40

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Solution

The fourth proportional to 401,472.40, 601,698.30 and 164,547.40 is: 246,611.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,472.40 : 601,698.30 = 164,547.40 : x
  2. Step 2: Convert to fraction form
    401,472.40/601,698.30 = 164,547.40/x
  3. Step 3: Cross multiply
    401,472.40x = 601,698.30 × 164,547.40
  4. Step 4: Simplify right side
    401,472.40x = 99,007,890,849.42
  5. Step 5: Solve for x
    x = 99,007,890,849.42/401,472.40
  6. Step 6: Final answer
    x = 246,611.95

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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.