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Finding the Fourth Proportional to 706,213.75, 974,533.59 and 383,921.03

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Solution

The fourth proportional to 706,213.75, 974,533.59 and 383,921.03 is: 529,788.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,213.75 : 974,533.59 = 383,921.03 : x
  2. Step 2: Convert to fraction form
    706,213.75/974,533.59 = 383,921.03/x
  3. Step 3: Cross multiply
    706,213.75x = 974,533.59 × 383,921.03
  4. Step 4: Simplify right side
    706,213.75x = 374,143,939,642.40
  5. Step 5: Solve for x
    x = 374,143,939,642.40/706,213.75
  6. Step 6: Final answer
    x = 529,788.52

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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.