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Finding the Fourth Proportional to 626,192.14, 864,145.48 and 339,712.20

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Solution

The fourth proportional to 626,192.14, 864,145.48 and 339,712.20 is: 468,803.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,192.14 : 864,145.48 = 339,712.20 : x
  2. Step 2: Convert to fraction form
    626,192.14/864,145.48 = 339,712.20/x
  3. Step 3: Cross multiply
    626,192.14x = 864,145.48 × 339,712.20
  4. Step 4: Simplify right side
    626,192.14x = 293,560,762,130.86
  5. Step 5: Solve for x
    x = 293,560,762,130.86/626,192.14
  6. Step 6: Final answer
    x = 468,803.01

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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.