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Finding the Fourth Proportional to 437,982.80, 657,233.40 and 288,654.80

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Solution

The fourth proportional to 437,982.80, 657,233.40 and 288,654.80 is: 433,153.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,982.80 : 657,233.40 = 288,654.80 : x
  2. Step 2: Convert to fraction form
    437,982.80/657,233.40 = 288,654.80/x
  3. Step 3: Cross multiply
    437,982.80x = 657,233.40 × 288,654.80
  4. Step 4: Simplify right side
    437,982.80x = 189,713,575,630.32
  5. Step 5: Solve for x
    x = 189,713,575,630.32/437,982.80
  6. Step 6: Final answer
    x = 433,153.03

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1.5x scale

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.