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Finding the Fourth Proportional to 525,533.80, 788,415.90 and 170,487.40

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Solution

The fourth proportional to 525,533.80, 788,415.90 and 170,487.40 is: 255,768.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,533.80 : 788,415.90 = 170,487.40 : x
  2. Step 2: Convert to fraction form
    525,533.80/788,415.90 = 170,487.40/x
  3. Step 3: Cross multiply
    525,533.80x = 788,415.90 × 170,487.40
  4. Step 4: Simplify right side
    525,533.80x = 134,414,976,909.66
  5. Step 5: Solve for x
    x = 134,414,976,909.66/525,533.80
  6. Step 6: Final answer
    x = 255,768.47

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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.