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Finding the Fourth Proportional to 605,207.60, 907,811.40 and 539,889.20

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Solution

The fourth proportional to 605,207.60, 907,811.40 and 539,889.20 is: 809,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,207.60 : 907,811.40 = 539,889.20 : x
  2. Step 2: Convert to fraction form
    605,207.60/907,811.40 = 539,889.20/x
  3. Step 3: Cross multiply
    605,207.60x = 907,811.40 × 539,889.20
  4. Step 4: Simplify right side
    605,207.60x = 490,117,570,496.88
  5. Step 5: Solve for x
    x = 490,117,570,496.88/605,207.60
  6. Step 6: Final answer
    x = 809,833.80

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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.