Home / 709,854.97-979,621.29-403,975.24

Finding the Fourth Proportional to 709,854.97, 979,621.29 and 403,975.24

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Solution

The fourth proportional to 709,854.97, 979,621.29 and 403,975.24 is: 557,498.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,854.97 : 979,621.29 = 403,975.24 : x
  2. Step 2: Convert to fraction form
    709,854.97/979,621.29 = 403,975.24/x
  3. Step 3: Cross multiply
    709,854.97x = 979,621.29 × 403,975.24
  4. Step 4: Simplify right side
    709,854.97x = 395,742,745,736.86
  5. Step 5: Solve for x
    x = 395,742,745,736.86/709,854.97
  6. Step 6: Final answer
    x = 557,498.03

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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.