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Finding the Fourth Proportional to 610,844.04, 842,949 and 338,910.84

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Solution

The fourth proportional to 610,844.04, 842,949 and 338,910.84 is: 467,688.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,844.04 : 842,949 = 338,910.84 : x
  2. Step 2: Convert to fraction form
    610,844.04/842,949 = 338,910.84/x
  3. Step 3: Cross multiply
    610,844.04x = 842,949 × 338,910.84
  4. Step 4: Simplify right side
    610,844.04x = 285,684,553,667.16
  5. Step 5: Solve for x
    x = 285,684,553,667.16/610,844.04
  6. Step 6: Final answer
    x = 467,688.21

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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.