Home / 1,278,069,348.60-1,917,104,022.90-589,321,812.60

Finding the Fourth Proportional to 1,278,069,348.60, 1,917,104,022.90 and 589,321,812.60

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Solution

The fourth proportional to 1,278,069,348.60, 1,917,104,022.90 and 589,321,812.60 is: 883,982,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,069,348.60 : 1,917,104,022.90 = 589,321,812.60 : x
  2. Step 2: Convert to fraction form
    1,278,069,348.60/1,917,104,022.90 = 589,321,812.60/x
  3. Step 3: Cross multiply
    1,278,069,348.60x = 1,917,104,022.90 × 589,321,812.60
  4. Step 4: Simplify right side
    1,278,069,348.60x = 1,129,791,217,718,179,968
  5. Step 5: Solve for x
    x = 1,129,791,217,718,179,968/1,278,069,348.60
  6. Step 6: Final answer
    x = 883,982,718.90

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Double scale
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Similar ratio
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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.