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Finding the Fourth Proportional to 610,844.13, 843,011.15 and 338,963.46

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Solution

The fourth proportional to 610,844.13, 843,011.15 and 338,963.46 is: 467,795.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,844.13 : 843,011.15 = 338,963.46 : x
  2. Step 2: Convert to fraction form
    610,844.13/843,011.15 = 338,963.46/x
  3. Step 3: Cross multiply
    610,844.13x = 843,011.15 × 338,963.46
  4. Step 4: Simplify right side
    610,844.13x = 285,749,974,527.76
  5. Step 5: Solve for x
    x = 285,749,974,527.76/610,844.13
  6. Step 6: Final answer
    x = 467,795.24

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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.