Home / 625,780.04-863,578.32-339,300.20

Finding the Fourth Proportional to 625,780.04, 863,578.32 and 339,300.20

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Solution

The fourth proportional to 625,780.04, 863,578.32 and 339,300.20 is: 468,235.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,780.04 : 863,578.32 = 339,300.20 : x
  2. Step 2: Convert to fraction form
    625,780.04/863,578.32 = 339,300.20/x
  3. Step 3: Cross multiply
    625,780.04x = 863,578.32 × 339,300.20
  4. Step 4: Simplify right side
    625,780.04x = 293,012,296,691.66
  5. Step 5: Solve for x
    x = 293,012,296,691.66/625,780.04
  6. Step 6: Final answer
    x = 468,235.29

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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.