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Finding the Fourth Proportional to 608,900.20, 911,600.70 and 545,914.60

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Solution

The fourth proportional to 608,900.20, 911,600.70 and 545,914.60 is: 817,303.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,900.20 : 911,600.70 = 545,914.60 : x
  2. Step 2: Convert to fraction form
    608,900.20/911,600.70 = 545,914.60/x
  3. Step 3: Cross multiply
    608,900.20x = 911,600.70 × 545,914.60
  4. Step 4: Simplify right side
    608,900.20x = 497,656,131,500.22
  5. Step 5: Solve for x
    x = 497,656,131,500.22/608,900.20
  6. Step 6: Final answer
    x = 817,303.28

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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.