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Finding the Fourth Proportional to 805,161.60, 1,206,705.60 and 383,529.60

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Solution

The fourth proportional to 805,161.60, 1,206,705.60 and 383,529.60 is: 574,800.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,161.60 : 1,206,705.60 = 383,529.60 : x
  2. Step 2: Convert to fraction form
    805,161.60/1,206,705.60 = 383,529.60/x
  3. Step 3: Cross multiply
    805,161.60x = 1,206,705.60 × 383,529.60
  4. Step 4: Simplify right side
    805,161.60x = 462,807,316,085.76
  5. Step 5: Solve for x
    x = 462,807,316,085.76/805,161.60
  6. Step 6: Final answer
    x = 574,800.53

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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.