Home / 809,685,619.65-1,116,531,040.37-692,598,574.53

Finding the Fourth Proportional to 809,685,619.65, 1,116,531,040.37 and 692,598,574.53

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Solution

The fourth proportional to 809,685,619.65, 1,116,531,040.37 and 692,598,574.53 is: 955,071,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,685,619.65 : 1,116,531,040.37 = 692,598,574.53 : x
  2. Step 2: Convert to fraction form
    809,685,619.65/1,116,531,040.37 = 692,598,574.53/x
  3. Step 3: Cross multiply
    809,685,619.65x = 1,116,531,040.37 × 692,598,574.53
  4. Step 4: Simplify right side
    809,685,619.65x = 773,307,806,975,296,896
  5. Step 5: Solve for x
    x = 773,307,806,975,296,896/809,685,619.65
  6. Step 6: Final answer
    x = 955,071,682.40

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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.