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Finding the Fourth Proportional to 1,165,761,032.68, 1,608,751,792.74 and 670,713,812.20

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Solution

The fourth proportional to 1,165,761,032.68, 1,608,751,792.74 and 670,713,812.20 is: 925,585,962.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,761,032.68 : 1,608,751,792.74 = 670,713,812.20 : x
  2. Step 2: Convert to fraction form
    1,165,761,032.68/1,608,751,792.74 = 670,713,812.20/x
  3. Step 3: Cross multiply
    1,165,761,032.68x = 1,608,751,792.74 × 670,713,812.20
  4. Step 4: Simplify right side
    1,165,761,032.68x = 1,079,012,047,792,229,760
  5. Step 5: Solve for x
    x = 1,079,012,047,792,229,760/1,165,761,032.68
  6. Step 6: Final answer
    x = 925,585,962.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.