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Finding the Fourth Proportional to 705,354.12, 973,388.44 and 383,064.30

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Solution

The fourth proportional to 705,354.12, 973,388.44 and 383,064.30 is: 528,628.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,354.12 : 973,388.44 = 383,064.30 : x
  2. Step 2: Convert to fraction form
    705,354.12/973,388.44 = 383,064.30/x
  3. Step 3: Cross multiply
    705,354.12x = 973,388.44 × 383,064.30
  4. Step 4: Simplify right side
    705,354.12x = 372,870,361,396.69
  5. Step 5: Solve for x
    x = 372,870,361,396.69/705,354.12
  6. Step 6: Final answer
    x = 528,628.60

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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.