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Finding the Fourth Proportional to 553,353.84, 763,617.92 and 338,478.16

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Solution

The fourth proportional to 553,353.84, 763,617.92 and 338,478.16 is: 467,093.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,353.84 : 763,617.92 = 338,478.16 : x
  2. Step 2: Convert to fraction form
    553,353.84/763,617.92 = 338,478.16/x
  3. Step 3: Cross multiply
    553,353.84x = 763,617.92 × 338,478.16
  4. Step 4: Simplify right side
    553,353.84x = 258,467,988,504.63
  5. Step 5: Solve for x
    x = 258,467,988,504.63/553,353.84
  6. Step 6: Final answer
    x = 467,093.51

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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.