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Finding the Fourth Proportional to 525,190.80, 787,883.40 and 170,216.40

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Solution

The fourth proportional to 525,190.80, 787,883.40 and 170,216.40 is: 255,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,190.80 : 787,883.40 = 170,216.40 : x
  2. Step 2: Convert to fraction form
    525,190.80/787,883.40 = 170,216.40/x
  3. Step 3: Cross multiply
    525,190.80x = 787,883.40 × 170,216.40
  4. Step 4: Simplify right side
    525,190.80x = 134,110,675,967.76
  5. Step 5: Solve for x
    x = 134,110,675,967.76/525,190.80
  6. Step 6: Final answer
    x = 255,356.10

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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.