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Finding the Fourth Proportional to 664,014.20, 997,058.10 and 384,078.20

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Solution

The fourth proportional to 664,014.20, 997,058.10 and 384,078.20 is: 576,717.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,014.20 : 997,058.10 = 384,078.20 : x
  2. Step 2: Convert to fraction form
    664,014.20/997,058.10 = 384,078.20/x
  3. Step 3: Cross multiply
    664,014.20x = 997,058.10 × 384,078.20
  4. Step 4: Simplify right side
    664,014.20x = 382,948,280,343.42
  5. Step 5: Solve for x
    x = 382,948,280,343.42/664,014.20
  6. Step 6: Final answer
    x = 576,717.00

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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.