Home / 621,628,285.56-857,836,140.30-343,162,646.52

Finding the Fourth Proportional to 621,628,285.56, 857,836,140.30 and 343,162,646.52

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Solution

The fourth proportional to 621,628,285.56, 857,836,140.30 and 343,162,646.52 is: 473,558,438.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,628,285.56 : 857,836,140.30 = 343,162,646.52 : x
  2. Step 2: Convert to fraction form
    621,628,285.56/857,836,140.30 = 343,162,646.52/x
  3. Step 3: Cross multiply
    621,628,285.56x = 857,836,140.30 × 343,162,646.52
  4. Step 4: Simplify right side
    621,628,285.56x = 294,377,320,185,849,984
  5. Step 5: Solve for x
    x = 294,377,320,185,849,984/621,628,285.56
  6. Step 6: Final answer
    x = 473,558,438.42

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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.