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Finding the Fourth Proportional to 525,405.96, 788,219.64 and 170,392.30

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Solution

The fourth proportional to 525,405.96, 788,219.64 and 170,392.30 is: 255,624.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,405.96 : 788,219.64 = 170,392.30 : x
  2. Step 2: Convert to fraction form
    525,405.96/788,219.64 = 170,392.30/x
  3. Step 3: Cross multiply
    525,405.96x = 788,219.64 × 170,392.30
  4. Step 4: Simplify right side
    525,405.96x = 134,306,555,394.22
  5. Step 5: Solve for x
    x = 134,306,555,394.22/525,405.96
  6. Step 6: Final answer
    x = 255,624.35

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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.