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Finding the Fourth Proportional to 500,550.73, 750,819.75 and 121,474.57

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Solution

The fourth proportional to 500,550.73, 750,819.75 and 121,474.57 is: 182,210.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,550.73 : 750,819.75 = 121,474.57 : x
  2. Step 2: Convert to fraction form
    500,550.73/750,819.75 = 121,474.57/x
  3. Step 3: Cross multiply
    500,550.73x = 750,819.75 × 121,474.57
  4. Step 4: Simplify right side
    500,550.73x = 91,205,506,278.76
  5. Step 5: Solve for x
    x = 91,205,506,278.76/500,550.73
  6. Step 6: Final answer
    x = 182,210.32

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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.