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Finding the Fourth Proportional to 434,448.80, 651,673.20 and 292,731.20

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Solution

The fourth proportional to 434,448.80, 651,673.20 and 292,731.20 is: 439,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,448.80 : 651,673.20 = 292,731.20 : x
  2. Step 2: Convert to fraction form
    434,448.80/651,673.20 = 292,731.20/x
  3. Step 3: Cross multiply
    434,448.80x = 651,673.20 × 292,731.20
  4. Step 4: Simplify right side
    434,448.80x = 190,765,077,843.84
  5. Step 5: Solve for x
    x = 190,765,077,843.84/434,448.80
  6. Step 6: Final answer
    x = 439,096.80

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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.