Home / 516,976.02-713,420.06-290,621.52

Finding the Fourth Proportional to 516,976.02, 713,420.06 and 290,621.52

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Solution

The fourth proportional to 516,976.02, 713,420.06 and 290,621.52 is: 401,053.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,976.02 : 713,420.06 = 290,621.52 : x
  2. Step 2: Convert to fraction form
    516,976.02/713,420.06 = 290,621.52/x
  3. Step 3: Cross multiply
    516,976.02x = 713,420.06 × 290,621.52
  4. Step 4: Simplify right side
    516,976.02x = 207,335,220,782.58
  5. Step 5: Solve for x
    x = 207,335,220,782.58/516,976.02
  6. Step 6: Final answer
    x = 401,053.85

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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.