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Finding the Fourth Proportional to 525,904.20, 788,661.90 and 170,929.80

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Solution

The fourth proportional to 525,904.20, 788,661.90 and 170,929.80 is: 256,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,904.20 : 788,661.90 = 170,929.80 : x
  2. Step 2: Convert to fraction form
    525,904.20/788,661.90 = 170,929.80/x
  3. Step 3: Cross multiply
    525,904.20x = 788,661.90 × 170,929.80
  4. Step 4: Simplify right side
    525,904.20x = 134,805,820,834.62
  5. Step 5: Solve for x
    x = 134,805,820,834.62/525,904.20
  6. Step 6: Final answer
    x = 256,331.52

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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.