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Finding the Fourth Proportional to 460,802.97, 690,944.04 and 190,778.40

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Solution

The fourth proportional to 460,802.97, 690,944.04 and 190,778.40 is: 286,059.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,802.97 : 690,944.04 = 190,778.40 : x
  2. Step 2: Convert to fraction form
    460,802.97/690,944.04 = 190,778.40/x
  3. Step 3: Cross multiply
    460,802.97x = 690,944.04 × 190,778.40
  4. Step 4: Simplify right side
    460,802.97x = 131,817,198,440.74
  5. Step 5: Solve for x
    x = 131,817,198,440.74/460,802.97
  6. Step 6: Final answer
    x = 286,059.78

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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.