Home / 911,839,005.80-1,258,338,904.17-494,151,291.10

Finding the Fourth Proportional to 911,839,005.80, 1,258,338,904.17 and 494,151,291.10

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Solution

The fourth proportional to 911,839,005.80, 1,258,338,904.17 and 494,151,291.10 is: 681,929,364.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,839,005.80 : 1,258,338,904.17 = 494,151,291.10 : x
  2. Step 2: Convert to fraction form
    911,839,005.80/1,258,338,904.17 = 494,151,291.10/x
  3. Step 3: Cross multiply
    911,839,005.80x = 1,258,338,904.17 × 494,151,291.10
  4. Step 4: Simplify right side
    911,839,005.80x = 621,809,794,136,964,736
  5. Step 5: Solve for x
    x = 621,809,794,136,964,736/911,839,005.80
  6. Step 6: Final answer
    x = 681,929,364.92

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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.