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Finding the Fourth Proportional to 525,485.76, 788,025.12 and 170,414.40

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Solution

The fourth proportional to 525,485.76, 788,025.12 and 170,414.40 is: 255,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,485.76 : 788,025.12 = 170,414.40 : x
  2. Step 2: Convert to fraction form
    525,485.76/788,025.12 = 170,414.40/x
  3. Step 3: Cross multiply
    525,485.76x = 788,025.12 × 170,414.40
  4. Step 4: Simplify right side
    525,485.76x = 134,290,828,009.73
  5. Step 5: Solve for x
    x = 134,290,828,009.73/525,485.76
  6. Step 6: Final answer
    x = 255,555.60

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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.