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Finding the Fourth Proportional to 705,948.62, 974,216.60 and 383,658.69

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Solution

The fourth proportional to 705,948.62, 974,216.60 and 383,658.69 is: 529,453.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,948.62 : 974,216.60 = 383,658.69 : x
  2. Step 2: Convert to fraction form
    705,948.62/974,216.60 = 383,658.69/x
  3. Step 3: Cross multiply
    705,948.62x = 974,216.60 × 383,658.69
  4. Step 4: Simplify right side
    705,948.62x = 373,766,667,705.99
  5. Step 5: Solve for x
    x = 373,766,667,705.99/705,948.62
  6. Step 6: Final answer
    x = 529,453.08

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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.