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Finding the Fourth Proportional to 373,970.28, 561,159.54 and 216,506.28

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Solution

The fourth proportional to 373,970.28, 561,159.54 and 216,506.28 is: 324,877.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,970.28 : 561,159.54 = 216,506.28 : x
  2. Step 2: Convert to fraction form
    373,970.28/561,159.54 = 216,506.28/x
  3. Step 3: Cross multiply
    373,970.28x = 561,159.54 × 216,506.28
  4. Step 4: Simplify right side
    373,970.28x = 121,494,564,491.91
  5. Step 5: Solve for x
    x = 121,494,564,491.91/373,970.28
  6. Step 6: Final answer
    x = 324,877.59

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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.