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Finding the Fourth Proportional to 455,432.96, 628,552.90 and 264,446.34

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Solution

The fourth proportional to 455,432.96, 628,552.90 and 264,446.34 is: 364,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,432.96 : 628,552.90 = 264,446.34 : x
  2. Step 2: Convert to fraction form
    455,432.96/628,552.90 = 264,446.34/x
  3. Step 3: Cross multiply
    455,432.96x = 628,552.90 × 264,446.34
  4. Step 4: Simplify right side
    455,432.96x = 166,218,513,901.39
  5. Step 5: Solve for x
    x = 166,218,513,901.39/455,432.96
  6. Step 6: Final answer
    x = 364,968.13

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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.