Home / 626,192.39-864,145.85-339,712.45

Finding the Fourth Proportional to 626,192.39, 864,145.85 and 339,712.45

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Solution

The fourth proportional to 626,192.39, 864,145.85 and 339,712.45 is: 468,803.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,192.39 : 864,145.85 = 339,712.45 : x
  2. Step 2: Convert to fraction form
    626,192.39/864,145.85 = 339,712.45/x
  3. Step 3: Cross multiply
    626,192.39x = 864,145.85 × 339,712.45
  4. Step 4: Simplify right side
    626,192.39x = 293,561,100,001.91
  5. Step 5: Solve for x
    x = 293,561,100,001.91/626,192.39
  6. Step 6: Final answer
    x = 468,803.36

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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.