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Finding the Fourth Proportional to 705,852.72, 974,074.80 and 383,562.80

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Solution

The fourth proportional to 705,852.72, 974,074.80 and 383,562.80 is: 529,315.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,852.72 : 974,074.80 = 383,562.80 : x
  2. Step 2: Convert to fraction form
    705,852.72/974,074.80 = 383,562.80/x
  3. Step 3: Cross multiply
    705,852.72x = 974,074.80 × 383,562.80
  4. Step 4: Simplify right side
    705,852.72x = 373,618,857,697.44
  5. Step 5: Solve for x
    x = 373,618,857,697.44/705,852.72
  6. Step 6: Final answer
    x = 529,315.60

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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.