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Finding the Fourth Proportional to 705,521.08, 973,620.94 and 383,228.56

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Solution

The fourth proportional to 705,521.08, 973,620.94 and 383,228.56 is: 528,856.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,521.08 : 973,620.94 = 383,228.56 : x
  2. Step 2: Convert to fraction form
    705,521.08/973,620.94 = 383,228.56/x
  3. Step 3: Cross multiply
    705,521.08x = 973,620.94 × 383,228.56
  4. Step 4: Simplify right side
    705,521.08x = 373,119,347,429.92
  5. Step 5: Solve for x
    x = 373,119,347,429.92/705,521.08
  6. Step 6: Final answer
    x = 528,856.41

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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.