Home / 591,217.83-815,880.57-319,285.74

Finding the Fourth Proportional to 591,217.83, 815,880.57 and 319,285.74

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Solution

The fourth proportional to 591,217.83, 815,880.57 and 319,285.74 is: 440,614.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,217.83 : 815,880.57 = 319,285.74 : x
  2. Step 2: Convert to fraction form
    591,217.83/815,880.57 = 319,285.74/x
  3. Step 3: Cross multiply
    591,217.83x = 815,880.57 × 319,285.74
  4. Step 4: Simplify right side
    591,217.83x = 260,499,031,544.07
  5. Step 5: Solve for x
    x = 260,499,031,544.07/591,217.83
  6. Step 6: Final answer
    x = 440,614.30

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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.