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Finding the Fourth Proportional to 605,235.60, 907,853.40 and 539,917.20

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Solution

The fourth proportional to 605,235.60, 907,853.40 and 539,917.20 is: 809,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,235.60 : 907,853.40 = 539,917.20 : x
  2. Step 2: Convert to fraction form
    605,235.60/907,853.40 = 539,917.20/x
  3. Step 3: Cross multiply
    605,235.60x = 907,853.40 × 539,917.20
  4. Step 4: Simplify right side
    605,235.60x = 490,165,665,738.48
  5. Step 5: Solve for x
    x = 490,165,665,738.48/605,235.60
  6. Step 6: Final answer
    x = 809,875.80

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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.