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Finding the Fourth Proportional to 805,713.60, 1,207,533.60 and 617,793.60

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Solution

The fourth proportional to 805,713.60, 1,207,533.60 and 617,793.60 is: 925,895.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,713.60 : 1,207,533.60 = 617,793.60 : x
  2. Step 2: Convert to fraction form
    805,713.60/1,207,533.60 = 617,793.60/x
  3. Step 3: Cross multiply
    805,713.60x = 1,207,533.60 × 617,793.60
  4. Step 4: Simplify right side
    805,713.60x = 746,006,529,864.96
  5. Step 5: Solve for x
    x = 746,006,529,864.96/805,713.60
  6. Step 6: Final answer
    x = 925,895.42

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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.