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Finding the Fourth Proportional to 624,877.47, 861,852.49 and 431,608.62

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Solution

The fourth proportional to 624,877.47, 861,852.49 and 431,608.62 is: 595,289.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,877.47 : 861,852.49 = 431,608.62 : x
  2. Step 2: Convert to fraction form
    624,877.47/861,852.49 = 431,608.62/x
  3. Step 3: Cross multiply
    624,877.47x = 861,852.49 × 431,608.62
  4. Step 4: Simplify right side
    624,877.47x = 371,982,961,157.47
  5. Step 5: Solve for x
    x = 371,982,961,157.47/624,877.47
  6. Step 6: Final answer
    x = 595,289.44

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1.5x scale

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.