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Finding the Fourth Proportional to 525,391.84, 788,213.04 and 170,406.64

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Solution

The fourth proportional to 525,391.84, 788,213.04 and 170,406.64 is: 255,650.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,391.84 : 788,213.04 = 170,406.64 : x
  2. Step 2: Convert to fraction form
    525,391.84/788,213.04 = 170,406.64/x
  3. Step 3: Cross multiply
    525,391.84x = 788,213.04 × 170,406.64
  4. Step 4: Simplify right side
    525,391.84x = 134,316,735,750.59
  5. Step 5: Solve for x
    x = 134,316,735,750.59/525,391.84
  6. Step 6: Final answer
    x = 255,650.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.