Home / 587,749.98-811,183.64-358,440.30

Finding the Fourth Proportional to 587,749.98, 811,183.64 and 358,440.30

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Solution

The fourth proportional to 587,749.98, 811,183.64 and 358,440.30 is: 494,701.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,749.98 : 811,183.64 = 358,440.30 : x
  2. Step 2: Convert to fraction form
    587,749.98/811,183.64 = 358,440.30/x
  3. Step 3: Cross multiply
    587,749.98x = 811,183.64 × 358,440.30
  4. Step 4: Simplify right side
    587,749.98x = 290,760,907,276.69
  5. Step 5: Solve for x
    x = 290,760,907,276.69/587,749.98
  6. Step 6: Final answer
    x = 494,701.69

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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.