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Finding the Fourth Proportional to 440,263.15, 608,786.13 and 349,461.47

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Solution

The fourth proportional to 440,263.15, 608,786.13 and 349,461.47 is: 483,227.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,263.15 : 608,786.13 = 349,461.47 : x
  2. Step 2: Convert to fraction form
    440,263.15/608,786.13 = 349,461.47/x
  3. Step 3: Cross multiply
    440,263.15x = 608,786.13 × 349,461.47
  4. Step 4: Simplify right side
    440,263.15x = 212,747,297,699.42
  5. Step 5: Solve for x
    x = 212,747,297,699.42/440,263.15
  6. Step 6: Final answer
    x = 483,227.59

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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.