Home / 625,983.15-863,857.75-339,503.46

Finding the Fourth Proportional to 625,983.15, 863,857.75 and 339,503.46

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Solution

The fourth proportional to 625,983.15, 863,857.75 and 339,503.46 is: 468,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,983.15 : 863,857.75 = 339,503.46 : x
  2. Step 2: Convert to fraction form
    625,983.15/863,857.75 = 339,503.46/x
  3. Step 3: Cross multiply
    625,983.15x = 863,857.75 × 339,503.46
  4. Step 4: Simplify right side
    625,983.15x = 293,282,695,072.82
  5. Step 5: Solve for x
    x = 293,282,695,072.82/625,983.15
  6. Step 6: Final answer
    x = 468,515.32

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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.