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Finding the Fourth Proportional to 400,417.40, 600,966.30 and 163,929.80

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Solution

The fourth proportional to 400,417.40, 600,966.30 and 163,929.80 is: 246,033.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,417.40 : 600,966.30 = 163,929.80 : x
  2. Step 2: Convert to fraction form
    400,417.40/600,966.30 = 163,929.80/x
  3. Step 3: Cross multiply
    400,417.40x = 600,966.30 × 163,929.80
  4. Step 4: Simplify right side
    400,417.40x = 98,516,285,365.74
  5. Step 5: Solve for x
    x = 98,516,285,365.74/400,417.40
  6. Step 6: Final answer
    x = 246,033.98

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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.