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Finding the Fourth Proportional to 466,567.04, 643,967.54 and 305,328.68

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Solution

The fourth proportional to 466,567.04, 643,967.54 and 305,328.68 is: 421,422.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,567.04 : 643,967.54 = 305,328.68 : x
  2. Step 2: Convert to fraction form
    466,567.04/643,967.54 = 305,328.68/x
  3. Step 3: Cross multiply
    466,567.04x = 643,967.54 × 305,328.68
  4. Step 4: Simplify right side
    466,567.04x = 196,621,758,951.05
  5. Step 5: Solve for x
    x = 196,621,758,951.05/466,567.04
  6. Step 6: Final answer
    x = 421,422.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.