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Finding the Fourth Proportional to 677,355.30, 934,793.55 and 447,509.39

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Solution

The fourth proportional to 677,355.30, 934,793.55 and 447,509.39 is: 617,591.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,355.30 : 934,793.55 = 447,509.39 : x
  2. Step 2: Convert to fraction form
    677,355.30/934,793.55 = 447,509.39/x
  3. Step 3: Cross multiply
    677,355.30x = 934,793.55 × 447,509.39
  4. Step 4: Simplify right side
    677,355.30x = 418,328,886,662.47
  5. Step 5: Solve for x
    x = 418,328,886,662.47/677,355.30
  6. Step 6: Final answer
    x = 617,591.52

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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.