Home / 498,169.36-687,488.88-283,340.35

Finding the Fourth Proportional to 498,169.36, 687,488.88 and 283,340.35

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Solution

The fourth proportional to 498,169.36, 687,488.88 and 283,340.35 is: 391,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,169.36 : 687,488.88 = 283,340.35 : x
  2. Step 2: Convert to fraction form
    498,169.36/687,488.88 = 283,340.35/x
  3. Step 3: Cross multiply
    498,169.36x = 687,488.88 × 283,340.35
  4. Step 4: Simplify right side
    498,169.36x = 194,793,339,880.31
  5. Step 5: Solve for x
    x = 194,793,339,880.31/498,169.36
  6. Step 6: Final answer
    x = 391,018.31

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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.