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Finding the Fourth Proportional to 450,970.28, 620,921.22 and 382,852.52

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Solution

The fourth proportional to 450,970.28, 620,921.22 and 382,852.52 is: 527,132.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,970.28 : 620,921.22 = 382,852.52 : x
  2. Step 2: Convert to fraction form
    450,970.28/620,921.22 = 382,852.52/x
  3. Step 3: Cross multiply
    450,970.28x = 620,921.22 × 382,852.52
  4. Step 4: Simplify right side
    450,970.28x = 237,721,253,798.47
  5. Step 5: Solve for x
    x = 237,721,253,798.47/450,970.28
  6. Step 6: Final answer
    x = 527,132.86

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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.