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Finding the Fourth Proportional to 564,230.88, 778,855.41 and 383,023.80

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Solution

The fourth proportional to 564,230.88, 778,855.41 and 383,023.80 is: 528,720.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,230.88 : 778,855.41 = 383,023.80 : x
  2. Step 2: Convert to fraction form
    564,230.88/778,855.41 = 383,023.80/x
  3. Step 3: Cross multiply
    564,230.88x = 778,855.41 × 383,023.80
  4. Step 4: Simplify right side
    564,230.88x = 298,320,158,788.76
  5. Step 5: Solve for x
    x = 298,320,158,788.76/564,230.88
  6. Step 6: Final answer
    x = 528,720.01

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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.